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F. J. M. Laver JANUS --- reflections on DATAFAIR 69 . . 2--6 D. G. R. Buckle and C. H. Hunt and M. M. Ryder and S. H. Storey Computers and the small firm: 3 . . . . 7--9 B. Smith Developments in SPECOL --- a retrieval language for the non-programmer . . . . 10--13 A. Young Book Review . . . . . . . . . . . . . . 13--13 M. G. Notley The cumulative recurrence library . . . 14--19 J. S. Rohl and G. Cordingley List Processing Facilities in Atlas Autocode . . . . . . . . . . . . . . . . 20--24 G. M. Phillips Book Review . . . . . . . . . . . . . . 24--24 H. D. Baecker The use of Algol 68 for trees . . . . . 25--27 J. J. Florentin Book Review . . . . . . . . . . . . . . 27--27 W. M. Waite Building a Mobile Programming System . . 28--31 D. Barton and S. R. Bourne and J. P. Fitch An algebra system . . . . . . . . . . . 32--39 L. F. Blake and R. E. Lawson and I. M. Yuille A ring processing package for use with FORTRAN or a similar high-level language 40--47 M. Joseph An Analysis of Paging and Program Behaviour . . . . . . . . . . . . . . . 48--54 A. R. Gourlay Book Review . . . . . . . . . . . . . . 54--54 D. Wood The theory of left factored languages: Part 2 . . . . . . . . . . . . . . . . . 55--62 D. M. Boulton and C. S. Wallace A program for numerical classification 63--69 J. Gertler High-Level Programming for Process Control . . . . . . . . . . . . . . . . 70--75 M. Clint and A. Jennings The evaluation of eigenvalues and eigenvectors of real symmetric matrices by simultaneous iteration . . . . . . . 76--80 S. McKee and A. R. Mitchell Alternating Direction Methods for Parabolic Equations in Two Space Dimensions with a Mixed Derivative . . . 81--86 M. J. M. Bernal and J. R. Whiteman Numerical Treatment of Biharmonic Boundary Value Problems with Re-Entrant Boundaries . . . . . . . . . . . . . . . 87--91 Anonymous Errata . . . . . . . . . . . . . . . . . 91--91 P. J. Taylor The stability of the Du Fort--Frankel method for the diffusion equation with boundary conditions involving space derivatives . . . . . . . . . . . . . . 92--97 D. J. Rodabaugh On Stable Correctors . . . . . . . . . . 98--100 M. G. Cox A bracketing technique for computing a zero of a function . . . . . . . . . . . 101--102 J. Snell The solution in Chebyshev series of systems of linear differential equations with general boundary conditions . . . . 103--106 M. M. Chawla Estimation of Errors of Gauss--Chebyshev Quadratures . . . . . . . . . . . . . . 107--109 R. W. Hiorns Book Review . . . . . . . . . . . . . . 109--109 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 110--110 A. D. Woodall Algorithm 45: An internal sorting procedure using a two-way merge . . . . 110--111 Anonymous Algorithms supplement . . . . . . . . . 110--115 Shirley A. Lill Algorithm 46: a modified Davidon method for finding the minimum of a function using difference approximation for derivatives . . . . . . . . . . . . . . 111--113, 106 C. J. van Rijsbergen Algorithm 47: a clustering algorithm . . 113--115 A. H. J. Sale Note on Algorithm 42: Interpolation by certain quintic splines . . . . . . . . 115--115 N. Jardine Discussion and correspondence: Algorithms, methods and models in the simplification of complex data . . . . . 116--117 A. V. Reader Random digits by a mincing process . . . 118--118 P. B. Fellgett Correspondence: What is an analyst? . . 118--119 R. L. Allen and The Editor Correspondence: What is an analyst? . . 119--120 M. J. Savage Erratum: ``Junction optimisation technique'' . . . . . . . . . . . . . . 120--120 M. Wells Correspondence: Towards Fortran VI? . . 120--120 B. W. Dawkins and H. C. Dawkins Correspondence: On ``A University faculty timetable'' . . . . . . . . . . 121--122 Jan V. Garwick and J. N. Lyness Correspondence: On ``The effect of inadequate convergence criteria in automatic routines'' . . . . . . . . . . 122--122
A. Gunton Recovery Procedures for Direct Access Commercial Systems . . . . . . . . . . . 123--126 A. R. Mitchell Book Review . . . . . . . . . . . . . . 126--126 A. L. Humphrey and W. G. Munro Management Information Retrieval . . . . 127--130 R. M. Burstall Book Review . . . . . . . . . . . . . . 130--130 M. Harrop A basic approach to remote access . . . 131--135 D. W. Barron Book Review . . . . . . . . . . . . . . 135--135 A. J. T. Colin DOLPHIN --- a text filing system for University use . . . . . . . . . . . . . 136--141 A. Learner and A. L. Lim A note on transforming context-free grammars to Wirth--Weber precedence form 142--144 E. Lloyd Book Review . . . . . . . . . . . . . . 144--144 R. J. Pankhurst A computer program for generating diagnostic keys . . . . . . . . . . . . 145--151 R. J. Ord-Smith Generation of permutation sequences: part 1 . . . . . . . . . . . . . . . . . 152--155 A. J. Cole and D. Wishart An Improved Algorithm for the Jardine-Sibson Method of Generating Overlapping Clusters . . . . . . . . . . 156--163 T. I. Silvey and J. R. Barker Hybrid Computing Techniques for Solving Parabolic and Hyperbolic Partial Differential Equations . . . . . . . . . 164--170 C. A. R. Hoare Book Review . . . . . . . . . . . . . . 170--170 R. R. Allran and S. E. J. Johnsen An algorithm for solving nonlinear programming problems subject to nonlinear inequality constraints . . . . 171--177 R. M. Burstall Book Review . . . . . . . . . . . . . . 177--177 P. C. Haarhoff and J. D. Buys A new method for the optimization of a nonlinear function subject to nonlinear constraints . . . . . . . . . . . . . . 178--184 B. A. Murtagh and R. W. H. Sargent Computational experience with quadratically convergent minimisation methods . . . . . . . . . . . . . . . . 185--194 D. Greenspan Discrete, Nonlinear String Vibrations 195--201 R. E. Scraton A method for improving the convergence of Chebyshev series . . . . . . . . . . 202--203 D. J. Fyfe The use of cubic splines in the solution of certain fourth order boundary value problems . . . . . . . . . . . . . . . . 204--205 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 206--207 Anonymous Alogorithms Supplement . . . . . . . . . 206--219 P. G. Littlewood Algorithm 48: Procedure for the evaluation of an integral occurring in the mean square response analysis of linear systems . . . . . . . . . . . . . 207--208 K. W. Smillie Algorithm 49: Indexing subarrays in multidimensional arrays . . . . . . . . 208--208 A. G. Bell Algorithm 50: How to program a computer to play legal chess . . . . . . . . . . 208--219 K. Fielding Note on Algorithm 44: Solution of nonlinear simultaneous equations . . . . 219--219 D. T. Muxworthy Note on Algorithm 47: a clustering algorithm . . . . . . . . . . . . . . . 219--219 C. J. van Rijsbergen Note on Algorithm 47: a clustering algorithm . . . . . . . . . . . . . . . 219--219 P. Hammersley and J. Larmouth Correspondence . . . . . . . . . . . . . 220--220 P. Hammersley and J. Larmouth Correspondence: Towards Fortran VI? . . 220--220 D. A. Carrick Correspondence: Interpretation of limited entry decision table format . . 220--221 T. H. Merret Correspondence . . . . . . . . . . . . . 221--221 T. H. Merret Correspondence: Chain processing in PL/1 221--221 J. G. Fraser Correspondence: Further comments on a line-thinning scheme . . . . . . . . . . 221--222 M. J. H. Webb Book review: \booktitleThe Economics of Computers, by William F. Sharpe, 1969 222--222
H. McGregor Ross The British Standard Data Code and how to exploit it . . . . . . . . . . . . . 223--229 M. D. Buckley-Sharp and F. T. C. Harris A computer program for banking multiple choice questions . . . . . . . . . . . . 230--236 I. J. Good Book Review . . . . . . . . . . . . . . 236--236 T. G. McLain and A. R. Trice The MINIMOP multi-access operating system . . . . . . . . . . . . . . . . . 237--242 A. R. Gourlay Book Review . . . . . . . . . . . . . . 242--242 D. Barton and S. R. Bourne and J. R. Horton The structure of the Cambridge algebra system . . . . . . . . . . . . . . . . . 243--247 F. H. George Book Review . . . . . . . . . . . . . . 247--247 D. Morris and I. R. Wilson and P. C. Capon A system program generator . . . . . . . 248--254 I. A. Macleod SP/1 --- a Fortran integrated string processor . . . . . . . . . . . . . . . 255--260 J. Nievergelt and M. I. Irland Bounce-and-skip. A technique for directing the flow of control in programs . . . . . . . . . . . . . . . . 261--262 E. L. Albasiny Book Review . . . . . . . . . . . . . . 262--262 J. B. Hext and P. S. Roberts Syntax analysis by Domölki's algorithm 263--271 D. Wood A generalised normal form theorem for context-free grammars . . . . . . . . . 272--277 A. G. Bell Partitioning integers in $N$ dimensions 278--283 Richard J. Hanson Automatic Error Bounds for Real Roots of Polynomials Having Interval Coefficients 284--288 V. E. Price Book Review . . . . . . . . . . . . . . 288--288 H. Van de Vel A note on the automatic pretreatment of polynomials . . . . . . . . . . . . . . 289--290 J. C. Taylor Boundary value problems for singular ordinary differential equations. A widely applicable method for calculating eigenvalues . . . . . . . . . . . . . . 291--296 G. M. Phillips Analysis of Numerical Iterative Methods for Solving Integral and Integrodifferential Equations . . . . . 297--300 A. Jones Spiral --- A new algorithm for non-linear parameter estimation using least squares . . . . . . . . . . . . . 301--308 P. M. Cohn Book Review . . . . . . . . . . . . . . 308--308 G. Peters and J. H. Wilkinson The Least Squares Problem and Pseudo-Inverses . . . . . . . . . . . . 309--316 R. Fletcher A new approach to variable metric algorithms . . . . . . . . . . . . . . . 317--322 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 323--323 D. J. Evans and L. V. Atkinson Algorithm 51: An algorithm for the solution of general three term linear systems . . . . . . . . . . . . . . . . 323--324 Anonymous Algorithms Supplement . . . . . . . . . 323--326 C. J. van Rijsbergen Algorithm 52: a fast hierarchic clustering algorithm . . . . . . . . . . 324--326 A. H. J. Sale Note on Algorithm 47: a clustering algorithm . . . . . . . . . . . . . . . 326--326 A. D. Woodall Note on Algorithm 43: a listed radix sort . . . . . . . . . . . . . . . . . . 326--326 A. D. Woodall Note on Algorithms 25, 26. 25: Sort a section of the elements of an array by determining the rank of each element. 26: Order the subscripts of an array section according to the magnitudes of the elements . . . . . . . . . . . . . . 326--326 R. D. Bennett Discussion and correspondence: computers and the business information structure: new horizons in decision making effectiveness . . . . . . . . . . . . . 327--329
Harold Gearing Sidney Albert Tasker --- An Appreciation 331--331 A. C. Day The Use of Symbol-State Tables . . . . . 332--339 J. R. Millenson Language and List Structure of a Compiler for Experimental Control . . . 340--343 T. H. O'Beirne Computer Programs Which Play Music with Microtones . . . . . . . . . . . . . . . 344--349 D. P. Treble Computers and Composition in Change Ringing . . . . . . . . . . . . . . . . 350--351 K. J. MacCallum Surfaces for Interactive Graphical Design . . . . . . . . . . . . . . . . . 352--358 C. G. Broyden Book Review . . . . . . . . . . . . . . 358--358 K. M. Waliuzzaman and Z. G. Vranesic On Decomposition of Multi-Valued Switching Functions . . . . . . . . . . 359--362 M. R. Abbott Numerical method for calculating the dynamic behaviour of a trolley wire overhead contact system for electric railways . . . . . . . . . . . . . . . . 363--368 C. W. J. McCallien The Solution of Reactor Diffusion Problems . . . . . . . . . . . . . . . . 369--377 D. B. Hunter Clenshaw's Method for Evaluating Certain Finite Series . . . . . . . . . . . . . 378--381 D. J. Evans Book Review . . . . . . . . . . . . . . 381--381 I. Barrodale and F. D. K. Roberts and C. R. Hunt Computing Best $l_p$ Approximations by Functions Nonlinear in One Parameter . . 382--386 L. J. Slater Book Review . . . . . . . . . . . . . . 386--386 J. S. Meditch Newton's Method in Discrete-Time Nonlinear Data Smoothing . . . . . . . . 387--391 J. H. Wilkinson Book Review: \booktitleA Collection of Matrices for Testing Computational Algorithms, by Robert T. Gregory, D. L. Karney, 1969; 154 pages. (John Wiley and Sons Ltd., \pounds 4.75) . . . . . . . . 391--391 D. J. McConalogue A quasi-intrinsic scheme for passing a smooth curve through a discrete set of points . . . . . . . . . . . . . . . . . 392--396 Anonymous Correspondence . . . . . . . . . . . . . 396--396 Melvin R. Scott Numerical Solution of Unstable Initial Value Problems by Invariant Imbedding 397--400 J. J. Florentin Book Review . . . . . . . . . . . . . . 400--400 P. G. O'Regan Step Size Adjustment At Discontinuities for Fourth Order Runge--Kutta Methods 401--404 V. A. LoDato The Permutation of a Certain Class of Matrices . . . . . . . . . . . . . . . . 405--410 A. R. Gourlay Generalisation of Elementary Hermitian Matrices . . . . . . . . . . . . . . . . 411--412 G. A. Dirac Book Review . . . . . . . . . . . . . . 412--412 S. Vajda Book Review . . . . . . . . . . . . . . 412a-412 J. O. Ramsay A Family of Gradient Methods for Optimization . . . . . . . . . . . . . . 413--417 G. Peckham A new method for minimising a sum of squares without calculating gradients 418--420 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 421--421 R. A. Zambardino Algorithm 53: Decomposition of positive definite symmetric band matrices . . . . 421--422 Anonymous Algorithms Supplement . . . . . . . . . 421--438 A. H. J. Sale Algorithm 54: Approximation of straight lines . . . . . . . . . . . . . . . . . 422--424 A. D. Woodall Algorithm 55: An internal merge sort giving ranks of items . . . . . . . . . 424--425 A. D. Woodall Algorithm 56: To disentangle a chain . . 425--425 T. O. M. Kronsjö Algorithm 57: Find . . . . . . . . . . . 425--426 T. O. M. Kronsjö Algorithm 58: an illustrative primal simplex linear program . . . . . . . . . 426--428 T. O. M. Kronsjö Algorithm 59: An illustrative primal simplex linear program using multipliers 428--429 T. O. M. Kronsjö Algorithm 60: An illustrative primal simplex linear program using multipliers and single dimensional arrays . . . . . 429--430 T. O. M. Kronsjö Algorithm 61: An illustrative self-dual parametric simplex linear program using multipliers . . . . . . . . . . . . . . 430--437 W. D. Hoskins Algorithm 62: Interpolating quintic splines on equidistant knots . . . . . . 437--438
J. Downing A computer controlled circulation system 2--6 J. A. Campbell A note on an optimal-fit method for dynamic allocation of storage . . . . . 7--9 K. J. MacCallum Correspondence . . . . . . . . . . . . . 9--9 A. H. J. Sale The classification of Fortran statements 10--12 C. R. Symons A cost accounting formula for multiprogramming computers . . . . . . . 13--20 J. Eve Book Review . . . . . . . . . . . . . . 20--20 M. Wells and D. Holdsworth and A. P. McCann The Eldon 2 operating system for KDF9 21--24 R. Alpiar Double syntax oriented processing . . . 25--37 N. Christofides An Algorithm for the Chromatic Number of a Graph . . . . . . . . . . . . . . . . 38--39 R. H. Stark A language for algorithms . . . . . . . 40--44 J. K. Reid Book Review . . . . . . . . . . . . . . 44--44 C. C. Foster Uncoupling central processor and storage device speeds . . . . . . . . . . . . . 45--48 P. A. Jackson PRBS cross-correlation measurements by hybrid computational techniques . . . . 49--54 P. J. H. King Correspondence . . . . . . . . . . . . . 54--54 P. J. H. King Correspondence: Interpretation of limited entry decision table format . . 54--54 S. H. Lavington and D. J. Kinniment and A. E. Knowles An experimental paging unit . . . . . . 55--60 G. C. Coggan and J. A. Wilson On-line state estimation with a small computer . . . . . . . . . . . . . . . . 61--64 K. A. Redish Correspondence . . . . . . . . . . . . . 64--64 K. A. Redish Correspondence: (Note on) Algorithm 44 64--64 E. L. V. Hope A high-order solution to the characteristic initial value problem in hyperbolic partial differential equations . . . . . . . . . . . . . . . 65--72 William Squire Correspondence . . . . . . . . . . . . . 72--72 William Squire and M. G. Cox Correspondence: On ``A bracketing technique for computing a zero of a function'' . . . . . . . . . . . . . . . 72--72 R. P. W. Lewis The selection of ADI iteration parameters by numerical experiment for the solution of Poisson's equation over a circular area . . . . . . . . . . . . 73--74 W. F. Lunnon Multi-dimensional map-folding . . . . . 75--80 L. B. Smith Drawing Ellipses, Hyperbolas Or Parabolas with a Fixed Number of Points and Maximum Inscribed Area . . . . . . . 81--86 R. L. Allen Correspondence . . . . . . . . . . . . . 86--86 R. L. Allen Correspondence: On quality of writing 86--86 D. G. Evershed and G. E. Rippon High level languages for low level users 87--90 B. Randell Book Review . . . . . . . . . . . . . . 90--90 H. G. Barrow and D. Michie and R. J. Popplestone and S. H. Salter Tokyo-Edinburgh dialogue on robots in artificial intelligence research . . . . 91--95 D. Michie Heuristic search . . . . . . . . . . . . 96--102 John C. West Book Review . . . . . . . . . . . . . . 102--102 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 103--103 A. D. Woodall Algorithm 63: a recursive tree sort . . 103--103 Anonymous Algorithms Supplement . . . . . . . . . 103--107 A. D. Woodall Algorithm 64: a non-recursive tree sort 104--104 A. H. J. Sale Algorithm 65: An improved clustering algorithm . . . . . . . . . . . . . . . 104--106 Shirley A. Lill Note on Algorithm 46: a modified Davidon method for finding the minimum of a function using difference approximation for derivatives . . . . . . . . . . . . 106--106 J. L. Berry and A. G. Bell Note on Algorithm 50: How to program a computer to play legal chess . . . . . . 106--107 J. G. Fryer Book review: \booktitleRank Order Probabilities: Two Sample Normal Shift Alternatives, by Roy C. Milton, 1970 . . 107--107 J. G. Fryer Book Review . . . . . . . . . . . . . . 107--107
S. J. Waters Blocking sequentially processed magnetic files . . . . . . . . . . . . . . . . . 109--112 D. Ball and P. M. Blackall and V. Gerard and G. R. Macleod and P. J. Marcer and E. M. Palandri FOCUS --- a remote access file handling system on-line to a CDC 6000 series computer . . . . . . . . . . . . . . . . 113--118 J. C. Baldwin and R. E. Thomas Multi-access on the Chilton Atlas . . . 119--122 J. W. Craggs Book Review . . . . . . . . . . . . . . 122--122 D. W. Barron Approaches to conversational FORTRAN . . 123--127 E. W. Haddon and L. G. Proll An Algol line-syntax checker . . . . . . 128--132 R. S. Scowen and D. Allin and A. L. Hillman and M. Shimell SOAP --- a program which documents and edits ALGOL 60 programs . . . . . . . . 133--135 R. J. Ord-Smith Generation of permutation sequences: Part 2 . . . . . . . . . . . . . . . . . 136--139 R. J. Ord-Smith Book Review . . . . . . . . . . . . . . 139--139 A. Ortony A system for stereo viewing . . . . . . 140--144 E. C. Cherry Book Review . . . . . . . . . . . . . . 144--144 J. Král Some Properties of the Scatter Storage Technique with Linear Probing . . . . . 145--149 E. S. Page Systematic generation of ordered sequences using recurrence relations . . 150--153 V. W. D. Hale Book Review . . . . . . . . . . . . . . 153--153 G. N. Lance and W. T. Williams A note on a new divisive classificatory program for mixed data . . . . . . . . . 154--155 R. John Lansdown Correspondence . . . . . . . . . . . . . 155--155 R. John Lansdowne Correspondence: On ``The use of symbol-state tables'' . . . . . . . . . 155--155 G. W. Osborne Correspondence . . . . . . . . . . . . . 155--155 G. W. Osborne Correspondence: On ``Bounce-and-skip. A technique for directing the flow of control in programs'' . . . . . . . . . 155--155 R. Sibson Some observations on a paper by Lance and Williams . . . . . . . . . . . . . . 156--157 W. T. Williams and H. T. Clifford and G. N. Lance Group-size dependence: a rationale for choice between numerical classifications 157--162 W. T. Williams and G. N. Lance and M. B. Dale and H. T. Clifford Controversy concerning the criteria for taxonometric strategies . . . . . . . . 162--165 G. G. Alway A general factorising algorithm . . . . 166--168 M. Grossman Parametric curve fitting . . . . . . . . 169--172 M. A. Wolfe The numerical solution of implicit first order ordinary differential equations with initial conditions . . . . . . . . 173--178 A. Hadjidimos Optimum extrapolated ADI iterative difference schemes for the solution of Laplace's equation in three space variables . . . . . . . . . . . . . . . 179--183 M. R. Osborne and G. A. Watson On an algorithm for discrete nonlinear $L_1$ approximation . . . . . . . . . . 184--188 R. Cranley and T. N. L. Patterson On the automatic numerical evaluation of definite integrals . . . . . . . . . . . 189--198 R. G. Bennetts and D. W. Lewin Fault diagnosis of digital systems --- a review . . . . . . . . . . . . . . . . . 199--206 P. Hammersley Algorithms supplement: Previously published algorithms . . . . . . . . . . 207--207 D. J. McConalogue Algorithm 66: An automatic French-curve procedure for use with an incremental plotter . . . . . . . . . . . . . . . . 207--209 Anonymous Algorithms Supplement . . . . . . . . . 207--215 D. J. McConalogue Algorithm 67: An axis invariant procedure to provide slopes at points by local three-point parametric curve fitting . . . . . . . . . . . . . . . . 209--209 J. R. Manning Algorithm 68: White to move and mate in $n$ moves . . . . . . . . . . . . . . . 209--213 F. Oliveira-Pinto Algorithm 69: Trigonometric curve fitting to equally or unequally spaced data . . . . . . . . . . . . . . . . . . 213--214 Zs. Kovács and Shirley A. Lill Note on Algorithm 46: a modified Davidon method for finding the minimum of a function using difference approximation for derivatives . . . . . . . . . . . . 214--215 N. E. Gough and J. B. A. Epton Note on Algorithm 48: Procedure for the evaluation of an integral occurring in the mean square response analysis of linear systems . . . . . . . . . . . . . 215--215 T. O. M. Kronsjö Note on Algorithms 58 to 61 . . . . . . 215--215
C. F. Reynolds CODIL, Part 1. The importance of flexibility . . . . . . . . . . . . . . 217--220 D. Morris and T. G. Kennedy and L. Last Flocoder . . . . . . . . . . . . . . . . 221--223 R. J. W. Housden Phrase structures in Fortran . . . . . . 224--228 I. A. Macleod Mp/1 --- a Fortran macroprocessor . . . 229--231 C. B. Jones A New Approach to the `Hidden Line' Problem . . . . . . . . . . . . . . . . 232--237 G. Molnar SEL --- a self-extensible programming language . . . . . . . . . . . . . . . . 238--242 David Barton and I. M. Willers and R. V. M. Zahar The automatic solution of systems of ordinary differential equations by the method of Taylor series . . . . . . . . 243--248 L. D. Higgins and Francis J. Smith Disc Access Algorithms . . . . . . . . . 249--253 D. W. Lewin Advanced aspects of asynchronous logic design . . . . . . . . . . . . . . . . . 254--259 V. A. LoDato The minimisation of distance in placement algorithms . . . . . . . . . . 260--262 M. J. Beaubien and A. Wexler Iterative, finite difference solution of interior eigenvalues and eigenfunctions of Laplace's operator . . . . . . . . . 263--269 R. A. C. Boggs and F. J. Smith A note on the integration of ordinary differential equations using Chebyshev series . . . . . . . . . . . . . . . . . 270--271 M. G. Cox An algorithm for approximating convex functions by means of first degree splines . . . . . . . . . . . . . . . . 272--275 R. Fletcher and J. A. Grant and M. D. Hebden The calculation of linear best $L_p$ approximations . . . . . . . . . . . . . 276--279 J. Grad Matrix Balancing . . . . . . . . . . . . 280--284 R. J. Hanson and P. Dyer A computational algorithm for sequential estimation . . . . . . . . . . . . . . . 285--290 F. T. Man A high-order method of solution for the Lyapunov matrix equation . . . . . . . . 291--292 A. Matthews and D. Davies A comparison of modified Newton methods for unconstrained optimisation . . . . . 293--294 S. McKee and A. R. Mitchell Alternating direction methods for parabolic equations in three space dimensions with mixed derivatives . . . 295--300 J. Oliver The evaluation of definite integrals using high-order formulae . . . . . . . 301--306 J. K. Reid A note on the approximation of plane regions . . . . . . . . . . . . . . . . 307--308 A. Zafarullah Some stable implicit difference methods for heat equation with derivative boundary condition . . . . . . . . . . . 309--311 J. M. Chambers Another round of Fortran . . . . . . . . 312--314 I. D. Hill Faults in functions, in Algol and Fortran . . . . . . . . . . . . . . . . 315--316 B. Randell Ludgate's analytical machine of 1909 . . 317--326 Anonymous Errata . . . . . . . . . . . . . . . . . 326--326
C. F. Reynolds CODIL, Part 2. The CODIL language and its interpreter . . . . . . . . . . . . 327--332 B. L. Meek Correspondence . . . . . . . . . . . . . 332--332 R. W. Bonney A keyword index file of British book titles . . . . . . . . . . . . . . . . . 333--337 A. H. Jones Correspondence . . . . . . . . . . . . . 337--337 A. J. Jones Correspondence: On quality of writing 337--337 J. W. Bridle and R. J. Gregersen CMSR --- a personnel information system 338--343 D. A. Bell Book Review . . . . . . . . . . . . . . 343--343 D. C. Cooper Book Review . . . . . . . . . . . . . . 343--343 J. A. Tomlin and D. C. Cooper and D. A. Bell Book reviews: \booktitleInteger and Dynamic Programming, by J. Abadie (editor), 1970; \booktitleAlgorithms and Recursive Functions, by A. L. Mal'cev, 1970; \booktitleInformation Theory for Systems Engineers (Econometrics and Operations Research XVII), by L. P. Hyvärinen, 1970 . . . . . . . . . . . . . 343--343 J. A. Tomlin Book Review . . . . . . . . . . . . . . 343--343 A. J. Leonard and M. E. Tribe Notable features of Orion . . . . . . . 344--347 G. Houston and R. Gillespie Integration of batch and timesharing services . . . . . . . . . . . . . . . . 348--351 Anonymous Erratum . . . . . . . . . . . . . . . . 351--351 M. J. Ecclestone Correspondence . . . . . . . . . . . . . 351--351 M. J. Ecclestone Correspondence: On ``A quasi-intrinsic scheme for passing a smooth curve through a discrete set of points'' . . . 351--351 Terry G. Seaks Erratum: The evaluation of eigenvalues and eigenvectors of real symmetric matrices by simultaneous iteration . . . 351--351 J. N. Sturman The functional partitioning of memory --- its application to interactive computing . . . . . . . . . . . . . . . 352--360 J. W. Gale Correspondence . . . . . . . . . . . . . 360--360 J. W. Gale Correspondence: On the February 1971 editorial . . . . . . . . . . . . . . . 360--360 J. N. G. Brittan and F. J. M. Farley College timetable construction by computer . . . . . . . . . . . . . . . . 361--365 R. C. Backhouse Correspondence . . . . . . . . . . . . . 365--365 R. C. Backhouse Correspondence: On ``High level languages for low level users'' . . . . 365--365 S. H. Valentine Correspondence . . . . . . . . . . . . . 365--365 S. H. Valentine Correspondence: ``On the automatic numerical evaluation of definite integrals'' . . . . . . . . . . . . . . 365--365 M. Etherton Data structures for a network design system . . . . . . . . . . . . . . . . . 366--374 E. L. Albaseny Book reviews: \booktitleNumerik Symmetrischer Matrizen, by H. Rutishauser, E. Stiefel and H. Schwarz, 1968; \booktitleComputational Methods in Partial Differential Equations, by A. R. Mitchell, 1969 . . . . . . . . . . . . . 374--374 E. L. Albasiny Book Review . . . . . . . . . . . . . . 374--374 E. L. Albasiny Book Review . . . . . . . . . . . . . . 374--374 A. Ricci An algorithm for the removal of hidden lines in 3D scenes . . . . . . . . . . . 375--377 Anthony Wren Book review: \booktitleCase Exercises in Operations Research, by J. J. C. Martin and R. A. Denison, 1971 . . . . . . . . 377--377 Anthony Wren Book Review . . . . . . . . . . . . . . 377--377 B. J. Austin A dynamic disc allocation algorithm designed to reduce fragmentation during file reloading . . . . . . . . . . . . . 378--381 R. M. Burstall Book Review . . . . . . . . . . . . . . 381--381 C. J. Evangelisti and S. P. Morse Graphical modelling using contextually implied functions . . . . . . . . . . . 382--389 A. Young and L. Fox and D. F. Mayers Book reviews: \booktitleConvexity and Optimization in Finite Dimensions I, by Josef Stoer and Christoph Witzgall, 1970; \booktitleOn Round-off Errors in Linear Programming, by H. Müller-Merbach, 1970; \booktitleApproximation Theory, edited by A. Talbot, 1970 . . . . . . . 390--390 M. Foley and C. A. R. Hoare Proof of a recursive program: Quicksort 391--395 D. Wood A further note on top-down deterministic languages . . . . . . . . . . . . . . . 396--403 P. B. Fellgett Book Review . . . . . . . . . . . . . . 403--403 N. Jardine and R. Sibson Choice of methods for automatic classification . . . . . . . . . . . . . 404--406 C. J. van Rijsbergen An algorithm for information structuring and retrieval . . . . . . . . . . . . . 407--412 J. M. Watt and J. Z. Young Book reviews: \booktitleComputation and Theory in Ordinary Differential Equations, by James W. Daniel and Ramon E. Moore, 1970; \booktitleProgress in Brain Research, Vol. 33. \booktitleComputers and Brains, by J. P. Schade and J. Smith, 1970 . . . . . . . 412--412 J. M. Watt Book Review . . . . . . . . . . . . . . 412--412 J. Z. Young Book Review . . . . . . . . . . . . . . 412--412 D. Zissos and F. G. Duncan NOR and NAND operators in Boolean algebra applied to switching circuit design . . . . . . . . . . . . . . . . . 413--417 N. Christofides Zero-one programming using non-binary tree-search . . . . . . . . . . . . . . 418--421 R. P. Brent An Algorithm with Guaranteed Convergence for Finding a Zero of a Function . . . . 422--425 P. R. Walwyn Correspondence . . . . . . . . . . . . . 425--425 P. R. Walwyn Correspondence: On ``High level languages for low level users'' . . . . 425--425 S. Hoshino On Davies, Swann and Campey minimisation process . . . . . . . . . . . . . . . . 426--427 D. Knibb and R. E. Scraton On the solution of parabolic partial differential equations in Chebyshev series . . . . . . . . . . . . . . . . . 428--432 R. Piessens Some aspects of Gaussian quadrature formulae for the numerical inversion of the Laplace transform . . . . . . . . . 433--436 L. J. Slater Book review: \booktitleMathematical Model Building in Economics and Industry (Second Series), by M. G. Kendall (editor), 1970 . . . . . . . . . . . . . 436--436 L. J. Slater Book Review . . . . . . . . . . . . . . 436--436 P. Wynn A note on the generalised Euler transformation . . . . . . . . . . . . . 437--441 A. S. Anderssen and E. T. White Improved numerical methods for Volterra integral equations of the first kind . . 442--443 D. W. Honey Correspondence . . . . . . . . . . . . . 443--443 D. W. Honey Correspondence: Calculation of a double-length square root from a double length number using single precision techniques . . . . . . . . . . . . . . . 443--443 R. F. Shepherd Algorithms supplement: Previously published algorithms . . . . . . . . . . 444--444 D. J. Evans Algorithm 69: An algorithm for the solution of symmetric general three term linear systems . . . . . . . . . . . . . 444--445 Anonymous Algorithms Supplement . . . . . . . . . 444--451 A. Jennings Algorithm 70: Solution of variable bandwidth positive definite simultaneous equations . . . . . . . . . . . . . . . 446--446 J. K. S. Dewar Algorithm 71: Procedures for interval arithmetic . . . . . . . . . . . . . . . 447--450 M. A. Sabin and D. J. McConalogue Note on Algorithm 67: An axis invariant procedure to provide slopes at points by local three-point parametric curve fitting . . . . . . . . . . . . . . . . 451--451
S. J. Waters File Design Fallacies . . . . . . . . . 1--4 J. Palme Correspondence . . . . . . . . . . . . . 4--4 J. Palme Correspondence: On high level languages 4--4, 36--36 D. G. Bennett and R. A. Davenport A Facility for Real-Time Program Development . . . . . . . . . . . . . . 5--7 R. B. K. Dewar Correspondence . . . . . . . . . . . . . 7--7 R. B. K. Dewar Correspondence: On ``Another round of FORTRAN'' . . . . . . . . . . . . . . . 7--7 B. A. Wichmann Five Algol Compilers . . . . . . . . . . 8--12 A. J. Finn Correspondence: Suggested Extensions to FORTRAN IV . . . . . . . . . . . . . . . 12--12 A. J. Finn Suggested Extension to Fortran IV . . . 12--12 J. S. Rohl and J. A. Linn A Note on Compiling Arithmetic Expressions . . . . . . . . . . . . . . 13--14 J. G. P. Barnes Real Time Languages for Process Control 15--17 I. D. Hill Correspondence . . . . . . . . . . . . . 17--17 I. D. Hill Correspondence: On ``High level languages for low level users'' . . . . 17--17 K. Dos and H. Otto Optimal dynamic use of memory for PL/1 object programs in a real memory environment . . . . . . . . . . . . . . 18--20 G. M. Bull Dynamic debugging in BASIC . . . . . . . 21--24 E. Whiteley Correspondence . . . . . . . . . . . . . 24--24 E. Whiteley Correspondence: On ``Step size adjustment at discontinuities for fourth order Runge--Kutta methods'' . . . . . . 24--24 J. L. M. Smith and T. S. Holden Restart of an Operating System having a Permanent File Structure . . . . . . . . 25--31 J. F. Lubran and J. D. Roberts Some Observations on `Least Time to Go' Scheduling . . . . . . . . . . . . . . . 32--36 J. A. N. Lee The formal definition of the BASIC language . . . . . . . . . . . . . . . . 37--41 R. N. Ibbett The MU5 instruction pipeline . . . . . . 42--50 W. P. Boote and S. R. Clark and T. A. Rourke Simulation of a Paging Computer System 51--57 L. B. Hunt Numerical smoothing and filtering in $N$ dimensions . . . . . . . . . . . . . . . 58--65 C. S. Wetherell and T. J. Buckholtz and K. S. Booth A director for Kriegspiel, a variant of chess . . . . . . . . . . . . . . . . . 66--70 C. G. Broyden Large Sparse Sets of Linear Equations 70--70 A. R. Forrest Interactive interpolation and approximation by Bézier polynomials . . . 71--79 Anonymous Errata . . . . . . . . . . . . . . . . . 79a-79 M. J. B. Duff Picture Language Machines . . . . . . . 79--79 P. E. Gill and G. F. Miller An algorithm for the integration of unequally spaced data . . . . . . . . . 80--83 D. C. Cooper Essays on Cellular Automata . . . . . . 83--83 B. S. Thornton Reduction and linearisation of quadratic constrained optimisation in linked systems . . . . . . . . . . . . . . . . 84--87 Anthony Wren Proceedings of the Princeton Symposium on Mathematical Programming . . . . . . 87--87 P. A. Samet Insight, Not Numbers . . . . . . . . . . 88--92 A. J. Flavell Correspondence . . . . . . . . . . . . . 92--92 A. J. Flavell Correspondence: On ``Another round of FORTRAN'' . . . . . . . . . . . . . . . 92--92 Anonymous Notes on the Submission of Papers . . . 93--93
G. F. Coulouris and J. M. Evans and R. W. Mitchell Towards Content-Addressing in Data Bases 95--98 R. N. Cuff A Conversational Compiler for Full PL/I 99--104 M. A. Sabin Correspondence: Comments on some algorithms for the representation of curves by straight line segments . . . . 104--104 A. E. Brown and C. E. Phillips and J. S. Scandale and D. P. Sparrow A data collection and display system for a large-scale simulation . . . . . . . . 105--108 P. C. Capon and D. Morris and J. S. Rohl and I. R. Wilson The MU5 compiler target language and autocode . . . . . . . . . . . . . . . . 109--112 K. A. Brons Correspondence . . . . . . . . . . . . . 112--112 D. Morris and G. D. Detlefsen and G. R. Frank and T. J. Sweeney The structure of the MU5 operating system . . . . . . . . . . . . . . . . . 113--116 P. A. Samet and D. W. Honey Calculation of a Double-Length Square Root from Double-Length Number using Single Precision Techniques . . . . . . 116--116 J. E. Stoy and C. Strachey OS6 --- an experimental operating system for a small computer. Part 1: general principles and structure . . . . . . . . 117--124 G. Moon Correspondence . . . . . . . . . . . . . 124--124 G. Moon and The Editor Correspondence: On editorial policy . . 124--124 E. W. Elcock and J. J. McGregor and A. M. Murray Data Directed Control and Operating Systems . . . . . . . . . . . . . . . . 125--129 J. Meredith Smith Proof and Validation of Program Correctness . . . . . . . . . . . . . . 130--131 P. B. Fellgett and M. R. Williams Correspondence: The wonderland of operating systems . . . . . . . . . . . 131--131 M. R. Williams and B. Randell Correspondence: On ``Ludgate's analytical machine of 1909' . . . . . . 131--131 S. H. Storey Optimal fixed batch sizes for real-time inquiry systems . . . . . . . . . . . . 132--133 M. H. Beilby Road Traffic Simulation on a Small Computer . . . . . . . . . . . . . . . . 134--137 B. A. Lewis Correspondence: On ``Improved numerical methods for Volterra integral equations of the first kind'' . . . . . . . . . . 137--137 B. A. Lewis Improved Numerical Methods for Volterra Integral Equations of the First Kind . . 137--137 M. P. Atkinson and S. R. Lang A comparison of some inverse Laplace transform techniques for use in circuit design . . . . . . . . . . . . . . . . . 138--139 J. Hyslop A Note on the Accuracy of Optimisation Techniques . . . . . . . . . . . . . . . 140--140 J. Oliver A doubly-adaptive Clenshaw--Curtis quadrature method . . . . . . . . . . . 141--147 E. G. Schlechtendahi and U. Schumann Correspondence . . . . . . . . . . . . . 147--147 E. G. Schlechtendahl and U. Schumann Correspondence: Remarks on ``Faults in functions, in ALGOL and FORTRAN'' . . . 147--147 D. R. Powell and J. R. Macdonald A rapidly convergent iterative method for the solution of the generalised nonlinear least squares problem . . . . 148--155 J. M. Watt Numerical Initial Value Problems in Ordinary Differential Equations . . . . 155--155 H. E. Salzer Lagrangian interpolation at the Chebyshev points $x_{n,\nu} \equiv \cos(\nu\pi/n), \nu = 0(1)n$; some unnoted advantages . . . . . . . . . . . 156--159 R. P. Saunders A Description and Analysis of Character Maps . . . . . . . . . . . . . . . . . . 160--169 D. C. Cooper Artificial Intelligence and Heuristic Programming . . . . . . . . . . . . . . 169--169 M. H. J. Webb Computer procurement policies for universities and similar users . . . . . 170--175 Anonymous Errata . . . . . . . . . . . . . . . . . 175a-175 C. A. Rogers Computers in Number Theory . . . . . . . 175--175 C. H. Lindsey Algol 68 with Fewer Tears . . . . . . . 176--188
M. V. Wilkes On Preserving the Integrity of Data Bases . . . . . . . . . . . . . . . . . 191--194 J. R. Eaton Book Review . . . . . . . . . . . . . . 194--194 J. E. Stoy and C. Strachey OS6 --- an experimental operating system for a small computer. Part 2: input/output and filing system . . . . . 195--203 B. Wegbreit A Generalised Compactifying Garbage Collector . . . . . . . . . . . . . . . 204--208 Kathrine M. Cunningham and J. C. Ogilvie Evaluation of hierarchical grouping techniques; a preliminary study . . . . 209--213 D. M. Jackson and L. J. White Stability problems in non-statistical classification theory . . . . . . . . . 214--221 L. W. Smith and S. S. Yau Generation of regular expressions for automata by the integral of regular expressions . . . . . . . . . . . . . . 222--228 A. Young Book Review . . . . . . . . . . . . . . 228--228 Z. J. Ghandour Formal systems and analysis of context sensitive languages . . . . . . . . . . 229--237 R. G. Bennetts A realistic approach to detection test set generation for combinational logic circuits . . . . . . . . . . . . . . . . 238--246 W. Cooper Correspondence . . . . . . . . . . . . . 246--246 W. Cooper Correspondence: On ``A quasi-intrinsic scheme for passing a smooth curve through a discrete set of points'' . . . 246--246 C. R. Edwards The Logic of Boolean Matrices . . . . . 247--253 Z. G. Vranesic and V. C. Hamacher Ternary Logic in Parallel Multipliers 254--258 Anonymous Erratum . . . . . . . . . . . . . . . . 258--258 H. W. Bradly Correspondence: On high level languages 258--258 R. E. Scraton and H. W. Bradly and David Silber Correspondence . . . . . . . . . . . . . 258--258 R. E. Scraton Correspondence: The generalised Euler transformation . . . . . . . . . . . . . 258--258 David Silber Correspondence: On ``Dynamic debugging in BASIC'' . . . . . . . . . . . . . . . 258--258 S. J. Waters Erratum: ``File design fallacies'' . . . 258--258 A. C. Clare and Elizabeth M. Cook and M. F. Lynch The identification of variable-length, equifrequent character strings in a natural language data base . . . . . . . 259--262 W. R. Willcox and S. P. Lapage Automatic Construction of Diagnostic Tables . . . . . . . . . . . . . . . . . 263--267 B. L. Meek Correspondence . . . . . . . . . . . . . 267--267 B. L. Meek Correspondence: On ``Suggested Extensions to FORTRAN IV'' . . . . . . . 267--267 J. Grad and E. Zakrajsek $LR$ Algorithm with Laguerre Shift for Symmetric Tridiagonal Matrices . . . . . 268--270 Anonymous Eric Mutch Memorial . . . . . . . . . . 270--270 H. F. Kaiser The JK method: a procedure for finding the eigenvectors and eigenvalues of a real symmetric matrix . . . . . . . . . 271--273 D. T. Hall Correspondence . . . . . . . . . . . . . 273--273 D. T. Hall Correspondence: On FORTRAN complainants 273--273 G. Loizou On the Quadratic Convergence of the Jacobi Method for Normal Matrices . . . 274--276 P. Bares Correspondence . . . . . . . . . . . . . 276--276 P. Bare\vs Correspondence: On ``The formal definition of the BASIC language'' . . . 276--276 R. P. Tewarson On Minimax Solutions of Linear Equations 277--279 R. F. Shepherd Algorithms supplement: Previously published algorithms . . . . . . . . . . 280--281 Anonymous Algorithms Supplement . . . . . . . . . 280--285 H. S. P. Jones Algorithm 72: Multiple integer arithmetic procedures in ALGOL . . . . . 281--282 W. D. Hoskins and P. R. King Algorithm 73: Periodic cubic spline interpolation using parametric splines 282--283 W. D. Hoskins and P. R. King and T. H. Andres Algorithm 74: Interpolation using periodic splines of odd order with equi-distant knots . . . . . . . . . . . 283--285 J. K. S. Dewar Note on Algorithm 71: Procedures for interval arithmetic . . . . . . . . . . 285--285 D. J. McConalogue Note on Algorithm 66: An automatic French-curve procedure for use with an incremental plotter . . . . . . . . . . 285--285
C. O. M. Stross Operation of a Disc Data Base . . . . . 290--297 Anonymous IFIP WG 2.1 . . . . . . . . . . . . . . 297--297 M. Shain Acceptance Trials for a Real Time System 298--301 C. J. Burgess Compile-Time Error Diagnostics in Syntax-Directed Compilers . . . . . . . 302--307 D. R. Gayler Correspondence . . . . . . . . . . . . . 307--307 D. R. Gayler and The Editor Correspondence: On editorial policy . . 307--307 M. Wells File Compression Using Variable Length Encodings . . . . . . . . . . . . . . . 308--313 F. R. A. Hopgood and J. Davenport The Quadratic Hash Method When the Table Size is a Power of $2$ . . . . . . . . . 314--315 Marya Goldman Repko Animated Cartoon Design with a CRT . . . 316--320 C. A. R. Hoare Proof of a structured program: The sieve of Eratosthenes . . . . . . . . . . . . 321--325 R. F. Ling On the theory and construction of $k$-clusters . . . . . . . . . . . . . . 326--332 J. R. Ehrman Correspondence . . . . . . . . . . . . . 332--332 J. R. Ehrman Correspondence: On ``Suggested Extensions to FORTRAN IV'' . . . . . . . 332--332 M. Ahmad Iterative schemes for high speed division . . . . . . . . . . . . . . . . 333--336 P. A. Lynn Recursive Digital Filters with Linear-Phase Characteristics . . . . . . 337--342 P. A. Beaven and D. W. Lewin An associative parallel processing system for non-numerical computation . . 343--349 Anonymous Notes for intending authors . . . . . . 349--349 I. R. Smith and L. A. Snider Numerical Solution of the Differential Equations of a Synchronous Generator . . 350--355 Anonymous Erratum . . . . . . . . . . . . . . . . 355--355 Anonymous Eric Mutch Memorial . . . . . . . . . . 355--355 D. J. Evans An algorithm for the solution of certain tridiagonal systems of linear equations 356--359 J. A. Templeman Correspondence . . . . . . . . . . . . . 359--359 J. A. Templeman Correspondence: On ``A data collection and display system for a large-scale simulation'' . . . . . . . . . . . . . . 359--359 J. A. Shanks Romberg tables for singular integrands 360--361 D. B. Cook Correspondence . . . . . . . . . . . . . 361--361 D. B. Cook Correspondence: `Packing' in FORTRAN . . 361--361 J. L. Seldon Correspondence . . . . . . . . . . . . . 361--361 J. L. Seldon Correspondence: The postage stamp problem . . . . . . . . . . . . . . . . 361--361 D. Barton and J. P. Fitch A review of algebraic manipulative programs and their application . . . . . 362--381 J. M. Chambers Correspondence . . . . . . . . . . . . . 381--381 J. M. Chambers Correspondence: On ``Another round of FORTRAN'' . . . . . . . . . . . . . . . 381--381 Anonymous Algorithms Supplement . . . . . . . . . 382--384 C. M. Crane Algorithm 75: Contour Plotting for Functions specified at Nodal Points of an Irregular Mesh based on an Arbitrary Two-Parameter Coordinate System . . . . 382--384 R. F. Shepherd Algorithms supplement: Statement of policy . . . . . . . . . . . . . . . . . 384--384
A. W. Goldsworthy Computers and Privacy --- A Review of the Younger Comm. Report . . . . . . . . ??
John B. Farmakides and others Legal Aspects of Computerized Information Systems . . . . . . . . . . ??
P. Hammersley Editorial . . . . . . . . . . . . . . . 2--3 M. V. Wilkes The dynamics of paging . . . . . . . . . 4--9 P. J. Brown UNRAVEL --- a programming language to put intelligence into dumps . . . . . . 10--12 V. G. Coulson and I. D. Hill and V. F. Hillier Algol survey program . . . . . . . . . . 13--15 I. R. MacCallum A simple analysis of the $n^{\rm th}$ order polyphase sort . . . . . . . . . . 16--18 R. J. Dakin Correspondence . . . . . . . . . . . . . 18--18 R. J. Dakin Correspondence: Impressions following the BCS Conference on Computer Performance . . . . . . . . . . . . . . 18--18 D. Wheeler and R. Needham Correspondence . . . . . . . . . . . . . 18--18 D. Wheeler and R. Needham and The Editor Correspondence: On word use . . . . . . 18--18 P. L. Higginson and P. T. Kirstein On the computation of cyclic redundancy checks by program . . . . . . . . . . . 19--22 J. P. Fitch On algebraic simplification . . . . . . 23--27 R. I. Chaplin and R. E. Crosbie and J. L. Hay A graphical representation of the Backus-Naur form . . . . . . . . . . . . 28--29 R. Sibson SLINK: an optimally efficient algorithm for the single-link cluster method . . . 30--34 I. D. Hill Book Review . . . . . . . . . . . . . . 34--34 J. G. Griffiths Drawing opaque solids using an incremental plotter . . . . . . . . . . 35--38 J. G. Laski Book Review . . . . . . . . . . . . . . 38--38 D. J. Grover Message orientated interactive graphics 39--45 M. J. D. Powell Book Review . . . . . . . . . . . . . . 45--45 M. F. Lynch and J. H. Petrie A program suite for the production of articulated subject indexes . . . . . . 46--51 Anonymous Errata . . . . . . . . . . . . . . . . . 51--51 D. M. Jackson Closed form approximations for random errors in distance functions . . . . . . 52--56 D. M. Boulton and C. S. Wallace Occupancy of a rectangular array . . . . 57--63 J. J. Florentin Book Review . . . . . . . . . . . . . . 63--63 A. D. Maude Interpolation --- Mainly for Graph Plotters . . . . . . . . . . . . . . . . 64--65 V. Zakian and R. K. Littlewood Numerical inversion of Laplace transforms by weighted least-squares approximation . . . . . . . . . . . . . 66--68 A. C. Day Book Review . . . . . . . . . . . . . . 68--68 J. A. Grant and G. D. Hitchins The Solution of Polynomial Equations in Interval Arithmetic . . . . . . . . . . 69--72 F. Oliveira-Pinto Simultaneous trigonometric approximation of the function and its first derivative 73--76 G. A. Watson On estimating best approximations of functions defined by integral equations 77--80 Anonymous COBOL Information Bulletin Number 16 . . 81--92 F. James Rohlf Algorithm 76: Hierarchical clustering using the minimum spanning tree . . . . 93--95 R. F. Shepherd Algorithms supplement --- Statement of Policy . . . . . . . . . . . . . . . . . 95--95
P. M. Stocker and P. A. Dearnley Self-organising data management systems 100--105 J. N. Barry Book Review . . . . . . . . . . . . . . 105--105 J. L. Berry Book Review . . . . . . . . . . . . . . 105--105 R. M. Burstall Book Review . . . . . . . . . . . . . . 105--105 M. M. Lehman Computer usage control . . . . . . . . . 106--110 D. W. Lozier and L. C. Maximon and W. L. Sadowski A bit comparison program for algorithm testing . . . . . . . . . . . . . . . . 111--117 E. A. Edmonds Book Review . . . . . . . . . . . . . . 117--117 B. Gay and S. G. Payne Interactive digital simulation on a small computer . . . . . . . . . . . . . 118--121 P. J. Brown A practical usage of outer and inner syntax . . . . . . . . . . . . . . . . . 122--123 M. J. Garside Book Review . . . . . . . . . . . . . . 123--123 W. Paker Book Review . . . . . . . . . . . . . . 123--123 C. R. Jordan A note on LISP universal $S$-functions 124--125 B. S. Walker Book Review . . . . . . . . . . . . . . 125--125 C. Bays Some Techniques for Structuring Chained Hash Tables . . . . . . . . . . . . . . 126--131 R. C. Welland Book Review . . . . . . . . . . . . . . 131--131 A. J. Szanser Bracketing technique in elastic matching 132--134 P. T. Kirstein Book Review . . . . . . . . . . . . . . 134--134 A. S. Radford Book Review . . . . . . . . . . . . . . 134--134 P. A. Samet Book Review . . . . . . . . . . . . . . 134--134 F. P. Wyman Binary programming: a decision rule for selecting optimal vs heuristic techniques . . . . . . . . . . . . . . . 135--140 Anonymous Errata . . . . . . . . . . . . . . . . . 140--140 Anonymous Eric Mutch Memorial Prize . . . . . . . 140--140 Z. Kohavi and J. A. Rivierre and I. Kohavi Machine distinguishing experiments . . . 141--147 F. W. M. Stentiford and D. W. Lewin An evolutionary approach to the concept of randomness . . . . . . . . . . . . . 148--151 Anonymous Acm George E. Forsythe student paper competition . . . . . . . . . . . . . . 151--151 N. Marovac A single data-display structure: a new view on interactive computer graphics in CAD . . . . . . . . . . . . . . . . . . 152--156 A. Ricci A constructive geometry for computer graphics . . . . . . . . . . . . . . . . 157--160 M. Ahmad The computing speed of a new machine . . 161--164 S. L. Hurst The application of Chow parameters and Rademacher-Walsh matrices in the synthesis of binary functions . . . . . 165--173 D. Zissos and F. G. Duncan Boolean minimisation . . . . . . . . . . 174--179 K. Spyropoulos and E. Kiountouzis and A. Young Discrete approximation in the $L_1$ norm 180--186 Anonymous Algorithms supplement . . . . . . . . . 187--188 Jan Christiansen Algorithm 77: Solving a system of simultaneous ordinary differential equations of the first order using a method for automatic step change . . . . 187--188 J. Palme Correspondence: SIMPL/I --- a new simulation language from IBM . . . . . . 189--189 G. H. Kirby and The Editor and R. Wane and I. D. Hill and Brian Meek Correspondence: Letters to \booktitleThe Computer Journal . . . . . . . . . . . . 189--190 I. D. Hill Correspondence . . . . . . . . . . . . . 190--190 H. E. Salzer Correspondence . . . . . . . . . . . . . 190--190 H. E. Salzer Correspondence: On ``Lagrangian interpolation at the Chebyshev points $x_{n,\nu} \equiv \cos(\nu\pi/n), \nu = 0(1)n$'' . . . . . . . . . . . . . . . . 190--190 R. Wane Correspondence . . . . . . . . . . . . . 190--190
H. W. G. Gearing Editorial: the silent business user . . 194--195 R. Jorré and G. Boyfield and J. Darkin Data communication user research in the Post Office: Part 1 . . . . . . . . . . 196--204 Anonymous Review: Short notice . . . . . . . . . . 204--204 F. G. Heath and C. M. Reeves Book reviews: \booktitleComputer Logic Design, by M. Morris Mano, 1972; \booktitleLogic and Logic Design, by B. Girling and H. G. Moring; \booktitleAn Introduction to Job Control Language, by Ronald J. DeMasi and Francis J. Longo, 1972 . . . . . . . . . . . . . . . . . . 204--204 F. G. Heath Book Review . . . . . . . . . . . . . . 204--204 C. M. Reeves Book Review . . . . . . . . . . . . . . 204--204 J. K. Broadbent and G. F. Coulouris MEMBERS --- a Microprogrammed Experimental Machine with a Basic Executive for Real-time Systems . . . . 205--208 C. A. R. Hoare A structured paging system . . . . . . . 209--215 B. Girling and D. A. Sturt Book reviews: \booktitleComputer Simulation of Dynamic Systems, by R. J. Kochenburger, 1972; \booktitle Electronic Data Processing and Computers for Commercial Students, by E. A. Bird, 1972 . . . . . . . . . . . . . . . . . . 215--215 B. Girling Book Review . . . . . . . . . . . . . . 215--215 D. A. Sturt Book Review . . . . . . . . . . . . . . 215--215 J. L. Dawson Combining interpretive code with machine code . . . . . . . . . . . . . . . . . . 216--219 R. J. Dakin and P. C. Poole A mixed code approach . . . . . . . . . 219--222 D. W. Lewin Book Review . . . . . . . . . . . . . . 222--222 J. K. Reid and D. W. Lewin Book reviews: \booktitleSparse Matrices and their Applications, edited by D. L. Rose and R. A. Willoughby, 1972; \booktitleIntroduction to Digital Computer Technology, by Louis Nashelsky, 1973 . . . . . . . . . . . . . . . . . . 222--222 J. K. Reid Book Review . . . . . . . . . . . . . . 222--222 J. A. Llewellyn The deadly embrace --- a finite state model approach . . . . . . . . . . . . . 223--225 J. R. Ullmann Book review: \booktitleIntroduction to Mathematical Techniques in Pattern Recognition, by Harry C. Andrews, 1972 225--225 J. R. Ullmann Book Review . . . . . . . . . . . . . . 225--225 H. C. Lucas, Jr. and L. Presser A method of software evaluation: the case of programming language translators 226--231 G. Terrine Coordinate grammars and parsers . . . . 232--244 Anonymous Errata . . . . . . . . . . . . . . . . . 244--244 Anonymous Eric Mutch Memorial Prize . . . . . . . 244--244 D. V. A. Campbell Errata: ``A simple analysis of the $n^{\rm th}$ order polyphase sort'' . . 244--244 S. G. Tzafestas State estimation algorithms for non-linear stochastic sequential machines . . . . . . . . . . . . . . . . 245--253 R. M. Burstall and P. A. Samet Book reviews: \booktitleRepresentation and Meaning, by Herbert A. Simon and Laurent Siklossy, 1972; \booktitleA Collection of Programming Problems and Techniques, by H. A. Maurer and M. R. Williams, 1972 . . . . . . . . . . . . . 253--253 R. M. Burstall Book Review . . . . . . . . . . . . . . 253--253 P. A. Samet Book Review . . . . . . . . . . . . . . 253--253 D. M. Boulton and C. S. Wallace An Information Measure for Hierarchic Classification . . . . . . . . . . . . . 254--261 P. A. Samet Book Review . . . . . . . . . . . . . . 261--261 Joan Walsh and P. A. Samet Book reviews: \booktitleComputer Applications of Numerical Methods, by Shan S. Kuo, 1972; \booktitleIntroduction to Computational Methods for Students of Calculus, by S. S. McNeary, 1972 . . . . . . . . . . . . 261--261 J. Walsh Book Review . . . . . . . . . . . . . . 261--261 N. Christofides Large scheduling problems with bivalent costs . . . . . . . . . . . . . . . . . 262--264 E. M. Chance Book review: \booktitleFORTRAN Techniques, by A. Colin Day, 1972 . . . 265--265 E. M. Chance Book Review . . . . . . . . . . . . . . 265--265 C. B. Dunham When absolute approximations are optimal in function subroutines . . . . . . . . 265--265 N. G. Meadows Automatic frequency and Mikhailov locus plotting for systems with distributed lags: a new analogue computer technique 266--268 A. G. Bell Himmelbett . . . . . . . . . . . . . . . 269--272 Tran Van Hoa Algorithm 78: Counting preferential votes in multi-member constituencies using absolute majority criteria . . . . 273--276 Anonymous Algorithms supplement . . . . . . . . . 273--280 D. Liggins Algorithm 79: an algorithm for the capacitated transportation problem . . . 276--278 A. Benson and D. J. Evans Algorithm 80: an algorithm for the solution of periodic quindiagonal systems of linear equations . . . . . . 278--279 R. F. Shepherd Algorithms supplement --- Statement of Policy . . . . . . . . . . . . . . . . . 279--280 Anonymous Operational Research Society annual conference: Torquay November 13--16 1973 --- Changes resulting from developments in telecommunications . . . . . . . . . 280--280 C. A. Bowring Discussion and correspondence: using macros to aid assembly-language teaching 281--283 P. Giles Implementation problems --- why are they seldom aired in the Journal? . . . . . . 283--283 D. W. Barron Correspondence: On editorial policy . . 284--284 C. B. Dunham and G. A. Watson Correspondence: Degeneracy in the matrix of partial derivatives . . . . . . . . . 284--284 L. J. Gallaher Correspondence: On Dijkstra and the GOTO statement . . . . . . . . . . . . . . . 284--285 D. T. Muxworthy Correspondence: On ``Compile-Time Error Diagnostics in Syntax-Directed Compilers'' . . . . . . . . . . . . . . 285--285 A. J. D. Pawson and F. R. A. Hopgood Correspondence: Hashing techniques for table searching . . . . . . . . . . . . 285--285 Robert A. Fairthorne and The Editor Correspondence: On word use . . . . . . 286--286 C. R. Tyler and The Editor Correspondence: Editorial . . . . . . . 286--287 Charles J. Gibbons and M. Wells Correspondence: On ``File Compression Using Variable Length Encodings'' . . . 287--287 D. G. Glading Correspondence: On Dakin's letter . . . 287--287 R. N. Ibbett and E. T. Warburton and The Editor Correspondence: The computing speed of a new machine . . . . . . . . . . . . . . 287--287
E. S. Page Editorial: the journal --- why and what for . . . . . . . . . . . . . . . . . . 290--290 R. Jorré and G. Boyfield and J. Darkin Data communication user research in the Post Office: Part 2 . . . . . . . . . . 292--302 J. Inglis and E. G. Dee Flexibility of Block-length for Magnetic Files . . . . . . . . . . . . . . . . . 303--307 M. J. B. Duff Book Review . . . . . . . . . . . . . . 307--307 D. V. Lindley Book Review . . . . . . . . . . . . . . 307--307 R. J. Leaman and M. H. Lloyd and C. S. Repton The development and testing of a processor self-test program . . . . . . 308--314 R. Fletcher Book Review . . . . . . . . . . . . . . 314--314 R. Fletcher Book Review . . . . . . . . . . . . . . 314--314 C. A. B. Smith Book Review . . . . . . . . . . . . . . 314--314 M. I. Padgett Tree Driven Data Input and its Validation . . . . . . . . . . . . . . . 315--321 F. E. Taylor Book Review . . . . . . . . . . . . . . 321--321 M. Thomas Book Review . . . . . . . . . . . . . . 321--321 P. B. Schneck and Ellinor Angel A Fortran to Fortran optimising compiler 322--330 A. C. Day Book Review . . . . . . . . . . . . . . 330--330 H. Whitfield and A. S. Wight EMAS --- the Edinburgh Multi-Access System . . . . . . . . . . . . . . . . . 331--346 F. E. Taylor Book Reviews . . . . . . . . . . . . . . 346--346 E. A. Akkoyunlu A linear algorithm for computing the optimum university timetable . . . . . . 347--350 J. Bordier and H. Saya A necessary and sufficient condition for a power language to be LL(k) . . . . . . 351--356 Anonymous Review: Short notice . . . . . . . . . . 356--356 Anonymous Review: Short notice . . . . . . . . . . 356--356 R. J. Hynds Book Reviews . . . . . . . . . . . . . . 356--356 R. C. Varney and M. H. Gotterer The structural foundation for an operating system . . . . . . . . . . . . 357--359 D. H. Green and R. G. Kelsch Nonlinear Ternary Feedback Shift Registers . . . . . . . . . . . . . . . 360--367 P. F. Stojak Hybrid and Digital Computation Results in Multicomponent Distillation Simulation . . . . . . . . . . . . . . . 368--374 G. M. Bull Book Review . . . . . . . . . . . . . . 374--374 J. J. Florentin Book Review . . . . . . . . . . . . . . 374--374 F. Oliveira-Pinto Generalised Chebyshev Polynomials and Their Use in Numerical Approximation . . 375--379 B. L. Meek Book Review . . . . . . . . . . . . . . 379--379 B. S. Walker Book Review . . . . . . . . . . . . . . 379--379 D. C. Brown Discussion and correspondence: the project, and the future of Computing Science courses . . . . . . . . . . . . 380--382 Anonymous Errata . . . . . . . . . . . . . . . . . 382--382
Sven Eriksen The Data Base Concept . . . . . . . . . ??
Anonymous Eric Mutch Memorial . . . . . . . . . . 2--2 J. K. Broadbent Microprogramming and System Architecture 2--8 D. F. Dives Book Review . . . . . . . . . . . . . . 8--8 L. G. Proll Book Review . . . . . . . . . . . . . . 8--8 D. A. H. Brown Some Error Correcting Codes for Certain Transposition and Transcription Errors in Decimal Integers . . . . . . . . . . 9--12 J. Eve Book Review . . . . . . . . . . . . . . 12--12 P. A. Dearnley A model of a self-organising data management system . . . . . . . . . . . 13--16 S. J. Waters Methodology of Computer Systems Design 17--24 P. Burnett and P. A. Kidd and A. M. Lister Simulation of Real-Time Program Faults 25--27 H. M. Liddell Book Review . . . . . . . . . . . . . . 27--27 A. Young Book Review . . . . . . . . . . . . . . 27--27 J. H. Kardasz and G. Molnar A Simula-based structure oriented language for the dynamic simulation of chemical plants . . . . . . . . . . . . 28--37 I. M. Barron Book Review . . . . . . . . . . . . . . 37--37 Ben Wegbreit Procedure Closure in EL1 . . . . . . . . 38--43 J. Cohen and Eileen Carton Non-Deterministic Fortran . . . . . . . 44--51 J. J. Florentin Consistency Auditing of Databases . . . 52--58 M. J. B. Duff Book Review . . . . . . . . . . . . . . 58--58 J. Inglis Inverted Indexes and Multi-List Structures . . . . . . . . . . . . . . . 59--63 D. H. Ferriss Book Review . . . . . . . . . . . . . . 63--63 C. A. Lang Book Review . . . . . . . . . . . . . . 63--63 A. J. Thomas Book Review . . . . . . . . . . . . . . 63--63 D. Pai and D. Lewin Analysis of Sequential Logic Circuits 64--68 E. S. Page and L. Waller An interactive approach for the solution of a class of discrete optimisation problems . . . . . . . . . . . . . . . . 69--74 M. C. Thomas Book Review . . . . . . . . . . . . . . 74--74 P. A. Wood Book Review . . . . . . . . . . . . . . 74--74 D. A. Phillips A preliminary investigation of function optimisation by a combination of methods 75--79 I. D. Hill Book Review . . . . . . . . . . . . . . 79--79 W. Proskurowski Ordering Method to Accelerate the Solution of Mate-In-Two Chess Problems by Computer . . . . . . . . . . . . . . 80--81 Anonymous Erratum . . . . . . . . . . . . . . . . 81--81 Anonymous \booktitleJournal of the Computer Society of India . . . . . . . . . . . . 81--81 Dana L. Ulery and H. M. Khalil A survey of language-oriented systems for numerical linear algebra . . . . . . 82--88 W. R. Broderick Book Review . . . . . . . . . . . . . . 88--88 J. H. Westcott Book Review . . . . . . . . . . . . . . 88--88 R. James Rohlf Algorithm 81: Dendrogram plot . . . . . 89--91 Anonymous Algorithms supplement . . . . . . . . . 89--92 W. D. Hoskins Note on Algorithm 74: Interpolation using periodic splines of odd order with equi-distant knots . . . . . . . . . . . 91--91 R. F. Shepherd Algorithms supplement: Statement of policy . . . . . . . . . . . . . . . . . 91--92 W. R. Broderick Book reviews: \booktitleSpline Analysis, by Martin H. Schultz, 1972; \booktitleIntroduction to Programming, by A. Sharp; \booktitleAlgol Programming, by R. W. Sharp . . . . . . 92--92 W. R. Broderick Book Review . . . . . . . . . . . . . . 92--92 M. J. D. Powell Book Review . . . . . . . . . . . . . . 92--92 J. M. Triance Discussion and Correspondence: Handling records with a variable structure in COBOL . . . . . . . . . . . . . . . . . 93--94 D. A. H. Brown Correspondence: Cyclic redundancy checking by program . . . . . . . . . . 94--95 J. Boothroyd Correspondence: On a radix conversion process . . . . . . . . . . . . . . . . 95--95 F. Poole and P. M. Stocker Correspondence: On ``Self-organising data management systems'' . . . . . . . 95--95 G. A. Fisher Correspondence: On ``Editorial: the silent business user'' . . . . . . . . . 95--96 H. N. Coates and The Editor Correspondence: The silent business user 96--96
R. G. Parsons and A. G. Dale and C. V. Yurkanan Data Manipulation Language Requirements for Data Base Management Systems . . . . 99--103 A. Y. C. Chau and B. W. Davies and B. Zacharov Island --- an Interactive Graphics System for Mathematical Analysis . . . . 104--112 P. A. Samet Book Review . . . . . . . . . . . . . . 112--112 M. Thomas Book Review . . . . . . . . . . . . . . 112--112 L. E. Heindel and J. T. Roberto ARPL --- A Retrieval Process Language 113--116 R. M. Needham and M. V. Wilkes Domains of Protection and the Management of Processes . . . . . . . . . . . . . . 117--120 J. J. Florentin Book Review . . . . . . . . . . . . . . 120--120 P. T. Kirstein Book Review . . . . . . . . . . . . . . 120--120 L. Presser and J. Benson Evaluation of Compiler Diagnostics . . . 121--123 D. T. Muxworthy Book Review . . . . . . . . . . . . . . 123--123 B. S. Walker Book Review . . . . . . . . . . . . . . 123--123 G. M. Stacey A Fortran Interface to the CODASYL Database Task Group Specifications . . . 124--129 M. Wells and A. Denson Direct Execution of Programming Languages . . . . . . . . . . . . . . . 130--134 O. Amble and D. E. Knuth Ordered Hash Tables . . . . . . . . . . 135--142 Anonymous Review: Short notice . . . . . . . . . . 142--142 F. J. M. Laver Book Review . . . . . . . . . . . . . . 142--142 J. Woods Book Review . . . . . . . . . . . . . . 142--142 J. S. Fenton Memoryless Subsystems . . . . . . . . . 143--147 Anonymous Review: Short notice . . . . . . . . . . 147--147 G. C. Goodwin Book Reviews . . . . . . . . . . . . . . 147--147 A. M. Lister Validation of Systems of Parallel Processes . . . . . . . . . . . . . . . 148--151 W. F. Smyth and E. Radaceanu A storage scheme for hierarchic structures . . . . . . . . . . . . . . . 152--156 R. G. Ward A variable delay method for improving recognition of parallel processable code in computer programs . . . . . . . . . . 157--164 D. F. Mayers Book Review . . . . . . . . . . . . . . 164--164 C. M. Reeves Book Review . . . . . . . . . . . . . . 164--164 D. M. Brandon, Jr. The implementation and use of sparse matrix techniques in general simulation programs . . . . . . . . . . . . . . . . 165--171 N. M. Brooke Book Review . . . . . . . . . . . . . . 171--171 M. J. Cross Nimbus 4 SCR Data Handling . . . . . . . 172--180 J. J. Florentin Book Review . . . . . . . . . . . . . . 180--180 J. R. Manning Continuity Conditions for Spline Curves 181--186 Cliff Lloyd Book Review: \booktitleStructured programming, by O.-J. Dahl, E. W. Dijkstra and C. A. R. Hoare . . . . . . 186--186 C. Lloyd Book Review . . . . . . . . . . . . . . 186--186 H. A. Marriott Correspondence . . . . . . . . . . . . . 187--187 H. A. Marriott Correspondence: On the spelling of ALGORITHM . . . . . . . . . . . . . . . 187--187 L. G. Proll and F. P. Wyman Correspondence: Observations on a decision rule for binary programming . . 187--188 K. J. MacCallum Correspondence . . . . . . . . . . . . . 188--188 K. J. MacCallum Correspondence: On mixing interpretive and machine code . . . . . . . . . . . . 188--188 R. W. Bemer Correspondence: On mixing interpretive and machine code . . . . . . . . . . . . 188--189 K. Freeman Correspondence . . . . . . . . . . . . . 189--189 K. Freeman Correspondence: On ``Himmelbett'' . . . 189--189 A. G. Bromley and Z. G. Vranesic and V. C. Hamacher Correspondence: Ternary logic in parallel multipliers . . . . . . . . . . 189--190 B. W. Dawkins Correspondence: \booktitleThe Computer Journal . . . . . . . . . . . . . . . . 190--190 D. L. Fisher Correspondence . . . . . . . . . . . . . 190--190 D. L. Fisher Correspondence: On ``The project, and the future of Computing Science courses'' . . . . . . . . . . . . . . . 190--190 J. Strawson Correspondence . . . . . . . . . . . . . 190--190 Joy Strawson Correspondence: On ``Himmelbett'' . . . 190--190 P. J. Hathaway and D. Van Vliet Correspondence: An efficient method for reading and writing subscripted arrays using FORTRAN IV . . . . . . . . . . . . 190--191 F. F. Land Book Review . . . . . . . . . . . . . . 191--191 R. Needham and F. F. Land and M. Wells Book reviews: \booktitleComputer Data Security, by H. Katzan, Jr., 1974; \booktitleInformation Systems in Management, by R. J. Radford, 1973; \booktitleData Transmission, by M. D. Bacon and G. M. Bull, 1973 . . . . . . . 191--191 R. Needham Book Review . . . . . . . . . . . . . . 191--191 M. Wells Book Review . . . . . . . . . . . . . . 191--191 Anonymous Special summer programme at Massachusetts Institute of Technology 192--192 J. Inglis and S. H. Lavington Book reviews: \booktitleThe Analysis of Information Systems, by C. T. Meadow, 1973; \booktitleIntroduction to Digital Computer Design, by D. J. Wooloms, 1973 192--192
B. Wagle and P. M. Jenkins Corporate Planning, Models and Computer Systems . . . . . . . . . . . . . . . . 194--200 L. Fox Book Review: \booktitleIntroduction to Matrix Computations, G. W. Stewart, 1973; 441 pages (Academic Press) . . . . 200--200 D. A. H. Brown Biquinary Decimal Error Detection Codes with One, Two and Three Check Digits . . 201--204 M. J. M. Bernal Book Review . . . . . . . . . . . . . . 204--204 H. M. Liddell Book Review . . . . . . . . . . . . . . 204--204 P. A. Dearnley The Operation of a Model Self Organising Data Management System . . . . . . . . . 205--210 D. A. H. Brown Book Review . . . . . . . . . . . . . . 210--210 S. J. Waters Computer-Aided Methodology of Computer Systems Design . . . . . . . . . . . . . 211--215 P. D. Stephens The IMP language and compiler . . . . . 216--223 J. K. Mullin and G. F. Stuart Optimum Blocking Factors for a Mix of Sequentially Processed Jobs . . . . . . 224--228 P. T. Kirstein Book Review . . . . . . . . . . . . . . 228--228 P. A. Samet Book Review . . . . . . . . . . . . . . 228--228 R. A. d'Inverno and R. A. Russell-Clark CLAM --- its Function, Structure and Implementation . . . . . . . . . . . . . 229--233 R. Haskell Symmetrical Precedence Relations on General Phrase Structure Grammars . . . 234--241 T. Komor A note on left factored languages . . . 242--244 N. Marovac Book Review . . . . . . . . . . . . . . 244--244 A. H. Wise Book Review . . . . . . . . . . . . . . 244--244 S. Dvorák and B. Kropác Decomposition of the Gozinto's Graph with the Use of a Nesting Store . . . . 245--248 M. I. Jackson Book Review . . . . . . . . . . . . . . 248--248 D. M. Jackson and W. W. Wadge Normal Form Reduction of Probabilistic Computations in Non-Parametric Classification . . . . . . . . . . . . . 249--252 D. H. Halfpenny Book Review . . . . . . . . . . . . . . 252--252 S. Waters Book Review . . . . . . . . . . . . . . 252--252 Jean V. Scott Computer Design of Cascade Logic . . . . 253--260 I. J. Fitzpatrick Book Review . . . . . . . . . . . . . . 260--260 C. A. Rogers Book Review . . . . . . . . . . . . . . 260--260 Dana H. Ballard and C. O. Jelinek and R. Schinzinger An algorithm for the solution of constrained generalised polynomial programming problems . . . . . . . . . . 261--266 H. M. Khalil and D. L. Ulery LINEAL: a system for numerical linear algebra . . . . . . . . . . . . . . . . 267--274 J. L. Hay and R. E. Crosbie and R. I. Chaplin Integration Routines for Systems with Discontinuities . . . . . . . . . . . . 275--278 H. N. Coates Discussion: Management in the Computer business . . . . . . . . . . . . . . . . 279--282 D. W. Barron Discussion: Job control languages and job control programs . . . . . . . . . . 282--286 A. J. Finn Correspondence . . . . . . . . . . . . . 287--287 M. J. R. Healy Correspondence . . . . . . . . . . . . . 287--287
D. W. Honey The `Queensway' Mersey tunnel entrance control project . . . . . . . . . . . . 290--294 B. E. Jones and M. A. Ould The Patient Medical Record as a Database 295--301 F. E. Randall Interrogating Date-Sensitive Files . . . 302--305 B. Richards Computers in Medicine Series . . . . . . 305--305 T. L. Shaftel and R. W. Zmud Allocation of Computer Resources Through Flexible Pricing . . . . . . . . . . . . 306--312 A. L. Lim A PL/I Approach to Programming Languages 312--312 R. H. Pierce Source Language Debugging on a Small Computer . . . . . . . . . . . . . . . . 313--317 E. L. Albasiny Computational Methods for Matrix Eigenproblems . . . . . . . . . . . . . 317--317 D. H. McLain Drawing Contours from Arbitrary Data Points . . . . . . . . . . . . . . . . . 318--324 M. V. Wilkes The Art of Computer Programming, Volume 3, Sorting and Searching . . . . . . . . 324--324 S. H. Valentine Comparative Notes on Algol 68 and PL/I 325--331 N. Marovac A method for defining general networks for CAD, using interactive computer graphics . . . . . . . . . . . . . . . . 332--336 D. W. Barron A Mathematical Theory of Global Program Optimization . . . . . . . . . . . . . . 336--336 E. A. Edmonds Problems of Heuristics . . . . . . . . . 336a-336 R. Bird Speeding up Programs . . . . . . . . . . 337--339 A. Ecker The period of search for the quadratic and related hash methods . . . . . . . . 340--343 E. S. Page Concepts and Methods in Discrete Event Digital Simulation . . . . . . . . . . . 343--343 G. Rozenberg and D. Wood Generative Models for Parallel Processes 344--348 D. Simpson Documentation Manual . . . . . . . . . . 348--348 Kenneth B. Salomon An efficient algorithm which determines the output from a sequential machine for regular inputs . . . . . . . . . . . . . 349--354 J. R. Eaton A Practical Approach to Computer Simulation in Business . . . . . . . . . 354--354 B. S. Walker Integrated circuits in digital electronics . . . . . . . . . . . . . . 354a-354 W. E. Wright An Axiomatic Specification of Euclidean Analysis . . . . . . . . . . . . . . . . 355--364 D. B. G. Edwards Digital Systems: Hardware Organization and Design . . . . . . . . . . . . . . . 364a-364 J. O. Jenkins Modern Data Processing for Management: a basic systems approach . . . . . . . . . 364b-364 M. M. Lehman Digital Computer Systems Principles . . 364--364 M. Boari and P. Pellizzardi and R. Rossi Performance Evaluation of a Process Control System by Simulation Model . . . 365--370 P. Hammersley The Skyline of Information Processing 370a-370 G. M. Phillips Topics in Numerical Analysis . . . . . . 370--370 F. Durbin Numerical Inversion of Laplace Transforms: an Efficient Improvement to Dubner and Abate's Method . . . . . . . 371--376 F. F. Land Functional Analysis of Information Processing . . . . . . . . . . . . . . . 376--376 R. A. Zambardino Algorithm 82: Solutions of systems of linear equations with partial pivoting and reduced storage requirements . . . . 377--378 Anonymous Algorithms Supplement . . . . . . . . . 377--380 L. R. Piper and I. R. Franklin and N. H. Westwood Algorithm 83: a rejection procedure for sampling from the distribution of chi-squared ($\chi^2$) or the sampling variance ($s^2$) . . . . . . . . . . . . 378--378 T. Andres and W. D. Hoskins and G. E. McMaster Algorithm 84: a coupled algorithm for the solution of certain tridiagonal systems of linear equations . . . . . . 378--379 J. K. S. Dewar Note on Algorithm 71: Procedures for interval arithmetic . . . . . . . . . . 379--380 I. D. Hill and R. W. M. Wedderburn Note on Algorithm 78: Counting preferential votes in multi-member constituencies using absolute majority criteria . . . . . . . . . . . . . . . . 380--380 Frank Parker Note on Algorithm 78: Counting preferential votes in multi-member constituencies using absolute majority criteria . . . . . . . . . . . . . . . . 380--380 J. D. Beasley Correspondence: System 4 random number 381--381 J. Boothroyd Erratum: ``On a radix conversion process'' . . . . . . . . . . . . . . . 381--381 H. H. W. Pitcher Correspondence: Definition of random . . 381--381 C. Whitby-Strevens Correspondence: Microprogramming and systems architecture . . . . . . . . . . 381--381 Anonymous Correspondence . . . . . . . . . . . . . 381--383 B. Hamilton Kelly Correspondence: On radix conversion . . 382--382 A. M. Andrew Correspondence: Decimal number checking schemes . . . . . . . . . . . . . . . . 382--383 Anonymous Editorial Addresses . . . . . . . . . . 383--383 D. A. Bell Correspondence: Computing Science . . . 383--383 R. I. Kitney Book review: \booktitleComputing Principles and Techniques, by B. L. Vickery, 1979 . . . . . . . . . . . . . 383--383 J. Leech Correspondence: On the spelling of ALGORITHM . . . . . . . . . . . . . . . 383--383
J. E. Jarvis The many faces of Multics . . . . . . . 2--6 K. A. Robinson Database --- the Ideas Behind the Ideas 7--11 S. J. Waters Estimating Magnetic Disc Seeks . . . . . 12--17 C. E. Goble A free-text retrieval system using hash codes . . . . . . . . . . . . . . . . . 18--20 I. D. C. Gurney Book Review . . . . . . . . . . . . . . 20--20 R. C. Welland Book Review . . . . . . . . . . . . . . 20--20 C. T. Fike A permutation generation method . . . . 21--22 R. Haskell Efficient Implementation of a Class of Recursively Defined Functions . . . . . 23--29 A. F. Cárdenas and R. W. Seeley A simple data structure for interactive graphic design/drafting . . . . . . . . 30--33 J. W. Black Book Review . . . . . . . . . . . . . . 33--33 C. J. Dickinson Book Review . . . . . . . . . . . . . . 33--33 A. Parkin Book Review . . . . . . . . . . . . . . 33--33 J. R. White and L. Presser A structured language for translator construction . . . . . . . . . . . . . . 34--42 I. M. Khabaza Book Review . . . . . . . . . . . . . . 42--42 A. L. Lim Book Review . . . . . . . . . . . . . . 42--42 D. Partridge A dynamic database which automatically removes unwanted generalisation for the efficient analysis of language features that exhibit a disparate frequency distribution . . . . . . . . . . . . . . 43--48 J. Inglis Book Review . . . . . . . . . . . . . . 48--48 P. T. Kirstein Book Review . . . . . . . . . . . . . . 48--48 J. R. Slagle and L. M. Norton Automated Theorem-Proving for the Theories of Partial and Total Ordering 49--54 S. R. Wilbur Book Review . . . . . . . . . . . . . . 54--54 G. A. Lanzarone and M. Ornaghi Program Construction by Refinements Preserving Correctness . . . . . . . . . 55--62 F. G. Duncan and D. Zissos and Maureen Walls A postfix notation for logic circuits 63--69 E. W. Haddon Book Review . . . . . . . . . . . . . . 69--69 D. J. Evans A recursive algorithm for determining the eigenvalues of a quindiagonal matrix 70--73 J. C. Nash A One-sided Transformation Method for the Singular Value Decomposition and Algebraic Eigenproblem . . . . . . . . . 74--76 F. Oliveira-Pinto The use of derivatives in the optimisation of the truncation error of polynomial approximations . . . . . . . 77--80 R. Hughes Jones and P. R. Graves-Morris and G. J. Makinson Algorithm 85: Generation of Chisholm approximants . . . . . . . . . . . . . . 81--83 Anonymous Algorithms supplement . . . . . . . . . 81--92 J. Rokne and P. Lancaster Algorithm 86: Complex Interval Arithmetic . . . . . . . . . . . . . . . 83--85 R. Fleck and J. Bailey Algorithm 87: Minimum of a non-linear function by the application of the geometric programming technique . . . . 86--89 I. D. Hill Algorithm 88: An electoral method . . . 89--90 L. R. Neal Correspondence . . . . . . . . . . . . . 93--93 R. K. Stamper Correspondence . . . . . . . . . . . . . 93--93 G. Hill and H. R. A. Townsend Correspondence . . . . . . . . . . . . . 94--94 Anonymous Erratum . . . . . . . . . . . . . . . . 95--95
A. D. Chambers Audit Test Packs and Computer Audit Programs . . . . . . . . . . . . . . . . 98--101 Anonymous Dr S. Gill . . . . . . . . . . . . . . . 101--101 W. N. Holmes Identification Number Design . . . . . . 102--107 G. Emery Book Review . . . . . . . . . . . . . . 107--107 J. Stephenson Book Review . . . . . . . . . . . . . . 107--107 K. W. Smillie and M. J. R. Shave Converting Decision Tables to Computer Programs . . . . . . . . . . . . . . . . 108--111 A. S. Radford Book Review . . . . . . . . . . . . . . 111--111 A. S. Radford Book Review . . . . . . . . . . . . . . 111--111 A. S. Radford Book Review . . . . . . . . . . . . . . 111--111 A. S. Radford Book Review . . . . . . . . . . . . . . 111--111 R. W. Zmud Two Enhancements to a Flexible Pricing Control System for Allocating Computer Resources . . . . . . . . . . . . . . . 112--114 Robert A. Fleck, Jr. Computer Efficiency and Linear Programming . . . . . . . . . . . . . . 115--116 C. C. M. Parish On the Application of Queueing Theory to Analysing On-Line Computing Systems . . 117--121 Anonymous New Journals . . . . . . . . . . . . . . 121--121 Anonymous Review: Short notice . . . . . . . . . . 121--121 Anonymous Review: Short notice . . . . . . . . . . 121--121 D. J. Rees The EMAS director . . . . . . . . . . . 122--130 A. C. Day Book Review . . . . . . . . . . . . . . 130--130 I. G. Dewis Book Review . . . . . . . . . . . . . . 130--130 R. J. Ord-Smith Book Review . . . . . . . . . . . . . . 130--130 A. S. Wight The EMAS archiving program . . . . . . . 131--134 C. A. Mercer Book Review . . . . . . . . . . . . . . 134--134 J. J. Florentin and A. J. Sammes Systems with State Re-Set . . . . . . . 135--139 P. J. H. King Book Review . . . . . . . . . . . . . . 139--139 A. L. Lim and G. R. Lewis Towards Structured Programs in APL . . . 140--143 P. J. Comerford Link systems for multi-computer control of a large process: Part 1 . . . . . . . 144--147 J. P. Cleave Book Review . . . . . . . . . . . . . . 147--147 N. Zvegintzov Problems with Analytic Description of Text Formats . . . . . . . . . . . . . . 148--149 I. M. Khabaza Book Review . . . . . . . . . . . . . . 149--149 R. J. W. Housden On String Concepts and Their Implementation . . . . . . . . . . . . . 150--156 Anonymous Books received . . . . . . . . . . . . . 156--156 A. Mayne and E. B. James Information Compression by Factorising Common Strings . . . . . . . . . . . . . 157--160 W. A. Burkhard Full Table Quadratic Quotient Searching 161--163 F. J. Rohlf A new approach to the computation of the Jardine-Sibson ${B_k}$ clusters . . . . 164--168 B. Cooper Time-Domain Matrix Evaluation of a Digital Servomechanism Using Semi-Hybrid Computational Techniques . . . . . . . . 169--172 Ayse Alaylioglu and G. A. Evans and J. Hyslop Automatic Generation of Quadrature Formulae for Oscillatory Integrals . . . 173--176 T. J. Buckholtz and C. S. Wetherell Algorithm 89: a program to referee Kriegspiel and chess . . . . . . . . . . 177--183 Anonymous Algorithms supplement . . . . . . . . . 177--185 W. S. Ford Algorithm 90: Periodic cubic spline interpolation with equidistant nodes . . 183--184 Anonymous Algorithm supplement --- Statement of Policy . . . . . . . . . . . . . . . . . 185--185 P. W. F. Coleman Discussion: Integrated training for the blind programmer . . . . . . . . . . . . 186--187 A. Learner Correspondence . . . . . . . . . . . . . 188--188 S. E. Wallis Correspondence . . . . . . . . . . . . . 188--188 C. A. Thrower and C. A. W. Wells Correspondence . . . . . . . . . . . . . 188--189 J. A. Templeman Correspondence . . . . . . . . . . . . . 189--189 J. C. Vorvoreanu Correspondence . . . . . . . . . . . . . 189--190 S. N. Baldota Correspondence . . . . . . . . . . . . . 190--190 J. Tomlinson Correspondence . . . . . . . . . . . . . 190--190 J. L. Campbell Correspondence . . . . . . . . . . . . . 190--191 Anonymous Erratum . . . . . . . . . . . . . . . . 191--191 E. J. C. Fowell Correspondence . . . . . . . . . . . . . 191--191
K. J. Allen Insuring Computers . . . . . . . . . . . 194--197 R. M. Burstall Book Review . . . . . . . . . . . . . . 197--197 A. Parkin Bringing Cost into File Design Decisions 198--199 S. J. Waters Analysis of Self-Indexing, Disc Files 200--205 C. D. Easteal Book Review . . . . . . . . . . . . . . 205--205 A. Young Book Review . . . . . . . . . . . . . . 205--205 D. A. Hawley and J. S. Knowles and E. E. Tozer Database Consistency and the CODASYL DBTG Proposals . . . . . . . . . . . . . 206--212 G. E. Millard and D. J. Rees and H. Whitfield The standard EMAS subsystem . . . . . . 213--219 P. J. Comerford Link systems for multi-computer control of a large process: Part 2: Fault detection . . . . . . . . . . . . . . . 220--222 Anonymous Review: Short notice . . . . . . . . . . 222--222 J. S. Knowles Book Review . . . . . . . . . . . . . . 222--222 M. H. Rogers Book Review . . . . . . . . . . . . . . 222--222 A. Young Book Review . . . . . . . . . . . . . . 222--222 H. D. Baecker Areas and Record-Classes . . . . . . . . 223--226 C. A. Mercer Book Review . . . . . . . . . . . . . . 226--226 W. A. Burkhard Nonrecursive Traversals of Trees . . . . 227--230 E. L. Albasiny Book Review . . . . . . . . . . . . . . 230--230 C. A. Mercer Book Review . . . . . . . . . . . . . . 230--230 G. Hunter A quantitative measure of precision . . 231--233 A. M. Andrew Book Review . . . . . . . . . . . . . . 233--233 D. Ghoshdastidar and M. K. Roy A study on the evaluation of Shell's sorting technique . . . . . . . . . . . 234--235 D. M. Boulton and C. S. Wallace An Information Measure for Single Link Classification . . . . . . . . . . . . . 236--238 G. C. E. Winn A digital approach to the efficient synthesis of threshold gates . . . . . . 239--242 M. M. Lehman Book Review . . . . . . . . . . . . . . 242--242 B. S. Walker Book Review . . . . . . . . . . . . . . 242--242 L. F. Turner The `on-ground' compression of satellite data . . . . . . . . . . . . . . . . . . 243--247 R. H. Bezdek and A. H. Sameh A note on computational methods for input-output econometric models . . . . 248--249 D. A. H. Brown Book Review . . . . . . . . . . . . . . 249--249 T. Tabata and R. Ito Effective Treatment of the Interpolation Factor in Marquardt's Nonlinear Least-Squares Fit Algorithm . . . . . . 250--251 T. W. Olle Book Review . . . . . . . . . . . . . . 251--251 E. H. Twizell The numerical solution of second order hyperbolic partial differential equations with unequally spaced initial conditions . . . . . . . . . . . . . . . 252--257 J. A. Grant and G. D. Hitchins Two Algorithms for the Solution of Polynomial Equations to Limiting Machine Precision . . . . . . . . . . . . . . . 258--264 R. H. Kemp Book Review . . . . . . . . . . . . . . 264--264 K. W. Morton Book Review . . . . . . . . . . . . . . 264--264 Gary D. Knott Hashing Functions . . . . . . . . . . . 265--278 H. C. Lauer Discussion on Ph.D. thesis proposals in computing science . . . . . . . . . . . 279--281 M. A. Sandys Correspondence: On ``Continuity Conditions for Spline Curves'' . . . . . 282--283 D. F. Arthur Correspondence: Reading variable length records using FORTRAN IV . . . . . . . . 283--283 K. M. Howell Correspondence: Check digits and error correction . . . . . . . . . . . . . . . 283--284 B. M. Ewen-Smith Correspondence: Check digits and error correction . . . . . . . . . . . . . . . 284--284 A. M. Andrew Correspondence: Decimal error-correction --- a solution . . . . . . . . . . . . . 284--285 D. B. Crombie Correspondence: Comparison of hybrid and digital computation performances for distillation simulation . . . . . . . . 285--285 J. P. N. Edwards and The Editor Correspondence: Saving CPU time in Scientific computation . . . . . . . . . 285--285 John Bradley Correspondence: On ``An algorithm for the solution of constrained generalised polynomial programming problems'' . . . 285--286 John V. Kline Correspondence: On ETAOIN SHRDLU . . . . 286--286 Roy S. Mullins Correspondence: On the origin of the word `algorithm' . . . . . . . . . . . . 286--286 Anonymous Call for papers . . . . . . . . . . . . 287--287 Anonymous Call for papers: 3rd International Conference on Automata, Languages and Programming, Edinburgh University, Scotland, July 20--23, 1976 . . . . . . 287--287 Anonymous Erratum . . . . . . . . . . . . . . . . 287--287 Anonymous Special notice . . . . . . . . . . . . . 287--287 R. W. Zmud Erratum: ``Two Enhancements to a Flexible Pricing Control System for Allocating Computer Resources'' . . . . 287--287
R. A. Osborn and W. P. Bain and T. Lloyd and P. H. Perring SPG --- a Programming System for Commercial Transaction Processing . . . 290--297 B. V. Howard Book Review . . . . . . . . . . . . . . 297--297 P. J. H. King and R. G. Johnson The conversion of decision tables to sequential testing procedures . . . . . 298--306 A. Parkin Programming Objectives: an Analysis . . 307--311 Gill Ringland Software Functional Variability . . . . 312--317 R. A. Earnshaw Is APL a Viable Programming Language? 318--323 M. J. Denham Book Review . . . . . . . . . . . . . . 323--323 S. J. Goldsack Book Review . . . . . . . . . . . . . . 323--323 R. J. Dakin A general control language: language structure and translation . . . . . . . 324--332 M. H. Williams and H. L. Ossher A computer model for instructional purposes . . . . . . . . . . . . . . . . 333--341 M. J. Denham Book Review . . . . . . . . . . . . . . 341--341 A. B. Smith Book Review . . . . . . . . . . . . . . 341--341 Alice Chung-Phillips and R. W. Rosen A note on dynamic data storage in Fortran IV . . . . . . . . . . . . . . . 342--343 F. J. B. Goddu The application of precedence operations to interactive Canadian income tax calculations . . . . . . . . . . . . . . 344--348 D. T. Goodwin An algorithm for inverting certain translators of context-free languages 349--354 P. J. Brown Book Review . . . . . . . . . . . . . . 354--354 R. B. Flavell Book Review . . . . . . . . . . . . . . 354--354 P. G. Barker Syntactic definition and parsing of molecular formulae: Part 1. Initial syntax definition and parser implementation . . . . . . . . . . . . . 355--359 N. E. Wiseman Book Review . . . . . . . . . . . . . . 359--359 K. Berkling and W. Kluge Conceptual Design of a Hardwired Main Storage Management Unit . . . . . . . . 360--365 I. M. Barron Book Review . . . . . . . . . . . . . . 365--365 J. Leech Book Review . . . . . . . . . . . . . . 365--365 W. F. Lunnon Counting Multidimensional Polyominoes 366--367 K. Vit Rational Interpolation and Extrapolation for SUMT . . . . . . . . . . . . . . . . 368--370 J. R. Cash The numerical solution of linear stiff boundary value problems . . . . . . . . 371--372 G. E. Trapp, Jr. and W. Squire Solving Nonlinear Vandermonde Systems 373--374 S. K. Shrivastava A view of concurrent process synchronisation . . . . . . . . . . . . 375--379 B. T. Denvir Correspondence . . . . . . . . . . . . . 380--380 A. S. Sethi and M. S. Krishnamoorthy Correspondence . . . . . . . . . . . . . 380--381 D. T. Muxworthy Correspondence . . . . . . . . . . . . . 381--381 K. J. Young Correspondence . . . . . . . . . . . . . 381--381 Anonymous Reports on degrees in data processing 382--398
Anonymous Editorial: a personal view of the `Beaumont' weekend . . . . . . . . . . . 2--2 K. D. Eason Understanding the Naive Computer User 3--7 Anonymous New Ans Fortran Standard . . . . . . . . 7--7 P. J. Pengilly An approach to systems design . . . . . 8--12 J. J. Florentin Data Base Representations of Application Models . . . . . . . . . . . . . . . . . 13--16 G. Schlageter The problem of lock by value in large data bases . . . . . . . . . . . . . . . 17--20 D. J. Cairns Book Review . . . . . . . . . . . . . . 20--20 S. J. Waters Hit Ratios . . . . . . . . . . . . . . . 21--24 D. C. Cooper Book Review . . . . . . . . . . . . . . 24--24 D. J. Howarth Book Review . . . . . . . . . . . . . . 24--24 R. B. E. Napper and R. N. Fisher ALEC --- a User Extensible Scientific Programming Language . . . . . . . . . . 25--31 L. V. Atkinson List Processing Language, SLPL --- an Informal Outline . . . . . . . . . . . . 32--39 I. M. Khabaza Book Review . . . . . . . . . . . . . . 39--39 R. L. Hittos and D. S. Henderson Optimisation of Main Memory Size Versus Speed . . . . . . . . . . . . . . . . . 40--42 L. Fox Book Review: \booktitleThe Chebyshev Polynomials, Theodore J. Rivlin, 1974; 186 pages (John Wiley) . . . . . . . . . 42--42 H. J. Curnow and B. A. Wichmann A synthetic benchmark . . . . . . . . . 43--49 F. G. Heath Book Review . . . . . . . . . . . . . . 49--49 R. E. Walters Benchmark techniques: a constructive approach . . . . . . . . . . . . . . . . 50--55 P. J. Taylor Book Review . . . . . . . . . . . . . . 55--55 S. K. Robinson and I. S. Torsun An empirical analysis of Fortran programs . . . . . . . . . . . . . . . . 56--62 A. C. Norman Expanding the Solutions of Implicit Sets of Ordinary Differential Equations in Power Series . . . . . . . . . . . . . . 63--68 W. H. Southwell Fitting Data to Nonlinear Functions with Uncertainties in All Measurement Variables . . . . . . . . . . . . . . . 69--73 Karl-Heinz Mohn and Roger V. Roman An interactive polynomial approximation algorithm . . . . . . . . . . . . . . . 74--78 Anonymous Second International Conference on very large data bases . . . . . . . . . . . . 78--78 W. E. McBride and A. K. Rigler A modification of the Osborne and Watson algorithm for nonlinear minimax approximation . . . . . . . . . . . . . 79--81 M. R. Williams The Difference Engines . . . . . . . . . 82--89 Donald Perlis An application of compiler simulation at the source language level . . . . . . . 90--90 T. S. Ng and A. Cantoni Run Time Interaction with Fortran Using Mixed Code . . . . . . . . . . . . . . . 91--92 W. B. Samson Testing Overflow Algorithms for a Table of Variable Size . . . . . . . . . . . . 92--92 D. W. Barron Correspondence . . . . . . . . . . . . . 93--93 B. P. Phillips Correspondence . . . . . . . . . . . . . 93--93 M. A. Sabin Correspondence . . . . . . . . . . . . . 93--94 P. G. Barker Correspondence . . . . . . . . . . . . . 94--94 A. Parkin Correspondence . . . . . . . . . . . . . 94--95 Anonymous Algorithms supplement . . . . . . . . . 95--95 A. D. Crossley Correspondence . . . . . . . . . . . . . 95--95 B. Joffe Correspondence . . . . . . . . . . . . . 95--95
J. M. Kerridge PATCOSY --- a Database System for the National Health Service . . . . . . . . 98--103 E. C. Coles and L. J. Beilin and C. J. Bulpitt and C. T. Dollery and B. F. Johnson and A. D. Munro-Faure and S. C. Turner An Approach to Computer Processing of Clinical Data . . . . . . . . . . . . . 104--109 E. S. Page Distribution sampling for computer simulation . . . . . . . . . . . . . . . 109--109 R. A. Davenport Database Integrity . . . . . . . . . . . 110--116 J. M. Hammersley Combinatorial Programming: Methods and Applications . . . . . . . . . . . . . . 116--116 P. A. Dearnley An Investigation into Database Resilience . . . . . . . . . . . . . . . 117--121 B. S. Walker Microcomputers: Fundamentals and Applications; Minicomputer Evaluation and Selection; Minicomputers: in Industrial Process Control . . . . . . . 121--121 S. J. Waters CAM 01: a Precedence Analyser . . . . . 122--126 Y. L. Varol Some Remarks on Computer Acquisition . . 127--131 O. Marjasoo A methodology for hardware and software availability analysis . . . . . . . . . 132--135 H. C. Lucas, Jr. and R. B. Kaplan A Structured Programming Experiment . . 136--138 G. R. Frank Job Control in the MU5 Operating System 139--143 J. Hilden Guidelines for the Design of Interactive Systems . . . . . . . . . . . . . . . . 144--150 D. C. Cooper The Design of an Optimizing Compiler . . 150a-150 S. R. Wilbur Lang-Pak --- An Interactive Language Design System . . . . . . . . . . . . . 150--150 Frank G. Pagan On Interpreter-Oriented Definitions of Programming Languages . . . . . . . . . 151--155 J. D. Lambert Computer Solution of Ordinary Differential Equations . . . . . . . . . 155--155 J. S. Rohl Programming Improvements to Fike's Algorithm for Generating Permutations 156--159 A. J. T. Colin The Principles of Systems Programming 159--159 L. V. Atkinson and G. J. Duffus Machine Code Generation Within a Compiler --- a Teaching Model . . . . . 160--165 B. Richards Methoden der Informatik in der Medizin 165--165 C. J. Higley Type Checking in a Typeless Language . . 166--169 A. G. Middleton On the Use of Macros for Iteration . . . 170--172 E. B. Dorling Environmental Data Handling . . . . . . 172b-172 C. A. R. Hoare Computer Science and Technology and their application . . . . . . . . . . . 172--172 C. M. Reeves Book Review: \booktitleComputer Science: Programming in FORTRAN with WATFOR WATFIV . . . . . . . . . . . . . . . . . 172a-172 A. T. Fuller The Period of Pseudo-Random Numbers Generated by Lehmer's Congruential Method . . . . . . . . . . . . . . . . . 173--177 D. H. McLain Two Dimensional Interpolation from Random Data . . . . . . . . . . . . . . 178--181 Anonymous Advanced Study Institute on Man-Computer Interaction . . . . . . . . . . . . . . 181--181 Anonymous Advanced Summer Institute on Computer Architecture . . . . . . . . . . . . . . 181a-181 John Mitchem On Various Algorithms for Estimating the Chromatic Number of a Graph . . . . . . 182--183 D. J. Evans and M. Hatzopoulos The solution of certain banded systems of linear equations using the folding algorithm . . . . . . . . . . . . . . . 184--187 J. Inglis Structured Programming and Input Statements . . . . . . . . . . . . . . . 188--189 D. L. Fisher Blind programmers --- their manager's experience . . . . . . . . . . . . . . . 189--192
B. F. M. Adamczewski A formula for establishing re-order quantities for individual items within a joint stock replenishment scheme . . . . 194--197 T. Alewine and R. A. Fleck, Jr. Service bureau or in-house data processing . . . . . . . . . . . . . . . 198--201 B. S. Walker Book Review . . . . . . . . . . . . . . 201--201 D. Bell Programmer Selection and Programming Errors . . . . . . . . . . . . . . . . . 202--206 G. Emery Book Review . . . . . . . . . . . . . . 206--206 J. F. Wellicome Book Review . . . . . . . . . . . . . . 206--206 E. B. James and D. P. Partridge Tolerance to Inaccuracy in Computer Programs . . . . . . . . . . . . . . . . 207--212 D. T. Muxworthy Book Review . . . . . . . . . . . . . . 212--212 A. Rogers Book Review . . . . . . . . . . . . . . 212--212 R. C. Varney Toward the Understandability of an Operating System . . . . . . . . . . . . 213--215 D. L. Dance and U. W. Pooch An adaptive on line data compression system . . . . . . . . . . . . . . . . . 216--224 B. Higman The place of own variables in programming language theory . . . . . . 225--228 D. Q. Mayne Book Review . . . . . . . . . . . . . . 228--228 A. S. Radford Book Review . . . . . . . . . . . . . . 228--228 D. S. Henderson and M. R. Levy An extended operator precedence parsing algorithm . . . . . . . . . . . . . . . 229--233 F. G. Heath Book Review . . . . . . . . . . . . . . 233--233 A. B. Smith Book Review . . . . . . . . . . . . . . 233--233 J. M. Brady A programming approach to some concepts and results in the theory of computation 234--237 R. Devillers and G. Louchard Improvement of parallelism in a finite buffer sharing policy . . . . . . . . . 238--245 D. J. Howarth Book Review . . . . . . . . . . . . . . 245--245 M. J. D. Powell Book Review . . . . . . . . . . . . . . 245--245 D. C. Sutcliffe An Algorithm for Drawing the Curve ${F(X,Y)} = 0$ . . . . . . . . . . . . . 246--249 R. P. Lorétan Timing Problems in Electronic Lockout Chains . . . . . . . . . . . . . . . . . 250--253 M. M. Lehman Book Review . . . . . . . . . . . . . . 253--253 P. M. Woodward Book Review . . . . . . . . . . . . . . 253--253 M. R. Patel and K. H. Bennett Analysis of Speed of a Binary Multiplier Using a Variable Number of Shifts Per Cycle . . . . . . . . . . . . . . . . . 254--257 A. Alaylioglu and G. A. Evans and J. Hyslop The use of Chebyshev series for the evaluation of oscillatory integrals . . 258--267 B. W. Conolly Book Review . . . . . . . . . . . . . . 267--267 A. C. Day and P. A. Clarke and D. Hill and J. K. Reid Discussion and correspondence: the proposed new standard for Fortran: a critical examination . . . . . . . . . . 268--271 M. T. Pezarro A note on estimating hit ratios for direct-access storage devices . . . . . 271--272 R. T. C. Lim and J. D. Blackburn On program verification in numerical methods . . . . . . . . . . . . . . . . 272--273 R. Taylor Fast input/output of variable-length arrays in FORTRAN IV . . . . . . . . . . 273--273 D. J. Hatter On processing sparse matrices . . . . . 273--274 R. D. Henshell and H. C. Lauer Ph.D. work in Computer Science and Professional Standards . . . . . . . . . 274--275 M. Boari and G. Neri A note on deadlock in the `readers and writers' problem . . . . . . . . . . . . 275--275 R. M. De Morgan and I. D. Hill and B. A. Wichmann A supplement to the Algol 60 Revised Report . . . . . . . . . . . . . . . . . 276--288 D. L. A. Barber Book Review . . . . . . . . . . . . . . 288--288 B. L. Clarkson Book Review . . . . . . . . . . . . . . 288--288
F. F. Land Evaluation of systems goals in determining a design strategy for a computer based information system . . . 290--294 J. M. Triance The significance of the 1974 COBOL standard . . . . . . . . . . . . . . . . 295--300 V. Siskind and J. Rosenhead Seek Times for Disc File Processing: Some Results from Probability Theory . . 301--305 S. Vajda Book Review . . . . . . . . . . . . . . 305--305 S. Vajda Book Review . . . . . . . . . . . . . . 305--305 R. G. Casey and I. M. Osman Replacement Algorithms for Storage Management in Relational Data Bases . . 306--314 D. Lewin Book Review . . . . . . . . . . . . . . 314--314 B. S. Walker Book Review . . . . . . . . . . . . . . 314--314 I. R. Williams Book Review . . . . . . . . . . . . . . 314--314 I. R. Williams Book Review . . . . . . . . . . . . . . 314--314 J. Ferrie and C. Kaiser and D. Lanciaux and B. Martin An extensible structure for protected systems' design . . . . . . . . . . . . 315--321 E. L. Albasiny Book Review . . . . . . . . . . . . . . 321--321 B. Girling Book Review . . . . . . . . . . . . . . 321--321 A. Walker and D. Wood Locally Balanced Binary Trees . . . . . 322--325 F. H. Sumner Book Review . . . . . . . . . . . . . . 325--325 C. Bays Non-Recursive Technique for Recreating a Digraph from its ${K}$-Formula Representation . . . . . . . . . . . . . 326--328 T. Sakaki and K. Nakashima and Y. Hattori Algorithms for Finding in the Lump Both Bounds of the Chromatic Number of a Graph . . . . . . . . . . . . . . . . . 329--332 D. A. H. Brown Book Review . . . . . . . . . . . . . . 332--332 P. B. Morice Book Review . . . . . . . . . . . . . . 332--332 C. M. Reeves Book Review . . . . . . . . . . . . . . 332--332 D. C. Sutcliffe A Remark on a Contouring Algorithm . . . 333--335 M. A. Sabin A method for displaying the intersection curve of two quadric surfaces . . . . . 336--338 R. J. Aust An improvement algorithm for school timetabling . . . . . . . . . . . . . . 339--343 I. M. Willers The syntax directed graph algorithm for the input of equations to the Taylor series system for solving ordinary differential equations . . . . . . . . . 344--347 P. J. Hartley Tensor Product Approximations to Data Defined on Rectangular Meshes in ${N}$-Space . . . . . . . . . . . . . . 348--352 Anonymous Erratum . . . . . . . . . . . . . . . . 352--352 P. A. Clarke Book Review . . . . . . . . . . . . . . 352--352 P. A. Clarke Book Review . . . . . . . . . . . . . . 352--352 M. Shacham and E. Kehat A direct method for the solution of large sparse systems of linear equations 353--359 A. C. Day Algorithm 91: Balancing a binary tree 360--361 Anonymous Algorithms supplement . . . . . . . . . 360--363 G. Berry Algorithm 92: The Drawing of Dashed Lines . . . . . . . . . . . . . . . . . 361--363 Anonymous Algorithms supplement-Statement of Policy . . . . . . . . . . . . . . . . . 363--363 J. W. Backus and F. L. Bauer and J. Green and C. Katz and J. McCarthy and P. Naur and A. J. Perlis and H. Rutishauser and K. Samelson and B. Vauquois and J. H. Wegstein and A. van Wijngaarden and M. Woodger and R. M. De Morgan and I. D. Hill and B. A. Wichmann Modified Report on the Algorithmic Language ALGOL-60 . . . . . . . . . . . 364--379 Anonymous Errata . . . . . . . . . . . . . . . . . 379--379 J. T. Hastings Correspondence . . . . . . . . . . . . . 380--380 G. N. Lance Correspondence . . . . . . . . . . . . . 380--381 J. K. Buckle Correspondence . . . . . . . . . . . . . 381--381 J. K. Croston Correspondence . . . . . . . . . . . . . 381--381 C. C. Wilton-Davies Correspondence . . . . . . . . . . . . . 381--381 S. P. Castell Correspondence . . . . . . . . . . . . . 382--382 R. L. Wexelblat Correspondence . . . . . . . . . . . . . 382--383 K. Brokate Correspondence . . . . . . . . . . . . . 383--383 I. R. Ellis Correspondence . . . . . . . . . . . . . 383--383 D. S. Grimsditch Correspondence . . . . . . . . . . . . . 383--384 Anonymous Errata . . . . . . . . . . . . . . . . . 384--384 Anonymous Sigmod-77 --- International Workshop on Management of Data . . . . . . . . . . . 384--384
S. J. Waters CAM02: a structured precedence analyser 2--5 B. M. Leavenworth Non-Procedural Data Processing . . . . . 6--9 B. J. Edwards Choice of Block Sizes for Magnetic Tape Files . . . . . . . . . . . . . . . . . 10--14 G. Davies Book Review . . . . . . . . . . . . . . 14--14 S. J. Goldsack Book Review . . . . . . . . . . . . . . 14--14 Alfonso F. Cardenas and James P. Sagamang Doubly-Chained Tree Data Base Organisation --- Analysis and Design Strategies . . . . . . . . . . . . . . . 15--26 J. S. Knowles Book Review . . . . . . . . . . . . . . 26--26 K. Forbes and A. W. Goldsworthy Prescheduling Algorithm --- Scheduling a Suitable Mix Prior to Processing . . . . 27--29 D. Nudds The design of the MAX macroprocessor . . 30--36 Anonymous Book Review . . . . . . . . . . . . . . 36--36 R. Edwards Book Review . . . . . . . . . . . . . . 36--36 C. Piney A generalised interactive system for the acquisition of structured data . . . . . 37--44 Anonymous Short notice . . . . . . . . . . . . . . 44--44 S. J. Goldsack Book Review . . . . . . . . . . . . . . 44--44 S. J. Goldsack Book Review . . . . . . . . . . . . . . 44--44 A. Young Book Review . . . . . . . . . . . . . . 44--44 M. H. Williams Generating Structured Flow Diagrams: the Nature of Unstructuredness . . . . . . . 45--50 B. G. T. Lowden and I. R. MacCallum Some Consequences of Deferred Binding in COBOL . . . . . . . . . . . . . . . . . 51--55 A. Cunningham Book Review . . . . . . . . . . . . . . 55--55 V. E. Price Book Review . . . . . . . . . . . . . . 55--55 A. Young Book Review . . . . . . . . . . . . . . 55--55 D. T. Goodwin Conditions for Underflow and Overflow of an Arithmetic Stack . . . . . . . . . . 56--62 D. Wood Two Variations on ${N}$-Parallel Finite State Generators . . . . . . . . . . . . 63--67 I. Aleksander Book Review . . . . . . . . . . . . . . 67--67 D. W. Barron Book Review . . . . . . . . . . . . . . 67--67 B. W. Conolly Book Review . . . . . . . . . . . . . . 67--67 M. J. B. Duff and D. M. Watson The cellular logic array image processor 68--72 R. C. Backhouse Book Review . . . . . . . . . . . . . . 72--72 A. Tosser and D. Dubus Algebraic Optimisation of NAND-NOR Switching Circuits . . . . . . . . . . . 73--77 A. J. T. Colin Book Review . . . . . . . . . . . . . . 77--77 N. Riley Book Review . . . . . . . . . . . . . . 77--77 A. Young Book Review . . . . . . . . . . . . . . 77--77 A. M. Macnaghten and C. A. R. Hoare Fast Fourier Transform Free from Tears 78--83 J. W. Akitt Function Minimisation Using the Nelder and Mead Simplex Method with Limited Arithmetic Precision: the Self Regenerative Simplex . . . . . . . . . . 84--85 Anonymous Algorithms supplement . . . . . . . . . 86--91 E. Zakrajsek Algorithm 93: Generalised eigenvalue problem . . . . . . . . . . . . . . . . 86--91 B. G. T. Lowden A note on the oscillating sort . . . . . 92--92 B. G. T. Lowden Discussion and correspondence: a note on the oscillating sort . . . . . . . . . . 92--96 Anonymous Erratum . . . . . . . . . . . . . . . . 96--96
A. Parkin The probable outcomes of a data processing project . . . . . . . . . . . 98--101 J. P. Cleave Book Review . . . . . . . . . . . . . . 101--101 R. E. Pacifico Book Review . . . . . . . . . . . . . . 101--101 R. K. Stamper The LEGOL 1 Prototype System and Language . . . . . . . . . . . . . . . . 102--108 R. H. Pierce and J. Rowell A transformation-directed compiling system . . . . . . . . . . . . . . . . . 109--115 K. J. McDonell An inverted index implementation . . . . 116--123 A. M. Andrew Book Review . . . . . . . . . . . . . . 123--123 A. M. Andrew Book Review . . . . . . . . . . . . . . 123--123 D. T. Muxworthy Book Review . . . . . . . . . . . . . . 123--123 H. R. A. Townsend SST --- a program for the automatic generation of symbol state tables . . . 124--127 P. Kammerer Excluding Regions . . . . . . . . . . . 128--131 Anonymous Apology . . . . . . . . . . . . . . . . 131--131 E. M. L. Beale Book Review . . . . . . . . . . . . . . 131--131 D. T. Muxworthy Book Review . . . . . . . . . . . . . . 131--131 Y. Wallach Scheduling algorithms for concurrent execution . . . . . . . . . . . . . . . 132--136 W. P. de Roever Book Review . . . . . . . . . . . . . . 136--136 F. G. Heath Book Review . . . . . . . . . . . . . . 136--136 E. G. Mallach Scatter Storage Techniques: a Uniform Viewpoint and a Method for Reducing Retrieval Times . . . . . . . . . . . . 137--140 I. M. Barron Book Review . . . . . . . . . . . . . . 140--140 R. Flavell Book Review . . . . . . . . . . . . . . 140--140 J. R. Ullmann A binary $n$-gram technique for automatic correction of substitution, deletion, insertion and reversal errors in words . . . . . . . . . . . . . . . . 141--147 D. de Champeaux and L. Sint An optimality theorem for a bi-directional heuristic search algorithm . . . . . . . . . . . . . . . 148--150 Anonymous Book Review . . . . . . . . . . . . . . 150--150 J. C. Cluley Book Review . . . . . . . . . . . . . . 150--150 Jerald Sydney Schwarz Generic Commands --- A Tool for Partial Correctness Formalisms . . . . . . . . . 151--155 W. S. Ford and V. C. Hamacher Low level architecture features for supporting process communication . . . . 156--162 A. Kaletzky and D. W. Lewin Problem orientated language for logic design . . . . . . . . . . . . . . . . . 163--169 A. Chantler Book Review . . . . . . . . . . . . . . 169--169 A. Chantler Book Review . . . . . . . . . . . . . . 169--169 R. I. Kitney Book Review . . . . . . . . . . . . . . 169--169 R. I. Kitney Book Review . . . . . . . . . . . . . . 169--169 J. N. Lyness and J. J. Kaganove A technique for comparing automatic quadrature routines . . . . . . . . . . 170--177 Anonymous European Federation for Medical Informatics --- Cambridge Congress Call for Papers . . . . . . . . . . . . . . . 177--177 Anonymous A historic computer film . . . . . . . . 177--177 Y. L. Varol On the generation of the pseudo-remainder in polynomial division 178--180 B. Higman Book Review . . . . . . . . . . . . . . 180--180 C. A. R. Hoare Book Review . . . . . . . . . . . . . . 180--180 D. J. Evans On the use of fast methods for solving boundary value problems . . . . . . . . 181--184 R. J. Clasen A note on the use of the conjugate gradient method in the solution of a large system of sparse equations . . . . 185--186 N. Teskey Discussion and correspondence: KATE: a macro-processor for extending command languages . . . . . . . . . . . . . . . 187--189
P. Stecher Proposal for an Interface System Between the Business and Data Processing Systems 194--201 A. Shaw Book Review . . . . . . . . . . . . . . 201--201 A. D. Wilkie Table Look-Up (With Examples in COBOL) 202--206 S. J. Waters Majority Verdicts in Multi-Processing --- any Two from Three . . . . . . . . . 207--212 A. J. T. Colin Book Review . . . . . . . . . . . . . . 212--212 P. Crocker Book Review . . . . . . . . . . . . . . 212--212 Deane B. Blazie and L. S. Levy A cross compiler for pocket calculators 213--221 W. D. Haseman and A. B. Whinston Automatic Application Program Interface to a Data Base . . . . . . . . . . . . . 222--226 P. A. Losty Book Review . . . . . . . . . . . . . . 226--226 P. A. Losty Book Review . . . . . . . . . . . . . . 226--226 R. N. Ibbett and M. A. Husband The MU5 name store . . . . . . . . . . . 227--231 B. G. Edwards Book Review . . . . . . . . . . . . . . 231--231 G. J. Janacek Book Review . . . . . . . . . . . . . . 231--231 H. R. A. Townsend Book Review . . . . . . . . . . . . . . 231--231 R. G. Hamlet Testing Programs with Finite Sets of Data . . . . . . . . . . . . . . . . . . 232--237 A. G. Middleton A case for type and form flow analysis 238--241 J. M. Robson Worst Case Fragmentation of First Fit and Best Fit Storage Allocation Strategies . . . . . . . . . . . . . . . 242--244 J. C. Shepherdson Review . . . . . . . . . . . . . . . . . 244--244 O. Nevalainen and M. Vesterinen Determining Blocking Factors for Sequential Files by Heuristic Methods 245--247 P. Scheuermann Modelling the Information Space in Physical Storage At Different Levels of Detail . . . . . . . . . . . . . . . . . 248--256 R. B. Hunter Book Review . . . . . . . . . . . . . . 256--256 I. M. Khabaza Book Review . . . . . . . . . . . . . . 256--256 G. Mitra Book Review . . . . . . . . . . . . . . 256--256 M. Wells Book Review . . . . . . . . . . . . . . 256--256 P. W. Williams and M. T. Khallaghi Document Retrieval Using a Substring Index . . . . . . . . . . . . . . . . . 257--262 M. A. Jackson Book Review . . . . . . . . . . . . . . 262--262 A. D. McGettrick Teaching mathematics by computer . . . . 263--268 I. Aleksander Review . . . . . . . . . . . . . . . . . 268--268 B. Barber Review . . . . . . . . . . . . . . . . . 268--268 B. E. Carpenter and R. W. Doran The other Turing machine . . . . . . . . 269--279 Anonymous Algorithms Supplement . . . . . . . . . 280--280 A. C. Day Algorithm 95: Generating a parity testing table . . . . . . . . . . . . . 280--280 I. D. Hill Algorithm 94: Handling dates on small computers . . . . . . . . . . . . . . . 280--280 Anonymous Algorithms supplement-Statement of Policy . . . . . . . . . . . . . . . . . 280--281 P. J. Hayes Discussion and correspondence: a note on the Towers of Hanoi problem . . . . . . 282--285
D. H. R. Huxtable and J. M. M. Pinkerton The hardware/software interface of the ICL 2900 range of computers . . . . . . 290--295 R. W. Billett Book Review . . . . . . . . . . . . . . 295--295 B. Conolly Book Review . . . . . . . . . . . . . . 295--295 P. J. Pengilly An approach to systems design. II. The popularisation of PROPLAN . . . . . . . 296--297 T. C. Ting and Y. W. Wang Multiway Replacement Selection Sort with Dynamic Reservoir . . . . . . . . . . . 298--301 J. C. Cluley Book Review . . . . . . . . . . . . . . 301--301 J. Inglis Book Review . . . . . . . . . . . . . . 301--301 J. Inglis Book Review . . . . . . . . . . . . . . 301--301 J. G. Kollias and P. M. Stocker and P. A. Dearnley Improving the Performance of an Intelligent Data Management System . . . 302--307 P. J. Clapson Toward a Performance Science: a Comparative Analysis of Computing Systems . . . . . . . . . . . . . . . . 308--315 S. Mamrak and J. M. Randal An analysis of a software engineering failure . . . . . . . . . . . . . . . . 316--320 B. M. Nicklas and G. Schlageter Index structuring in inverted data bases by TRIES . . . . . . . . . . . . . . . . 321--324 R. A. Reynolds Character String Handling in Fortran . . 325--329 Anonymous Errata . . . . . . . . . . . . . . . . . 329--329 M. P. Coates Book Review . . . . . . . . . . . . . . 329--329 J. A. Shackleton Book Review . . . . . . . . . . . . . . 329--329 K. A. Steele CPM Network Analysis with a Storage Tube Terminal . . . . . . . . . . . . . . . . 330--334 P. J. Willis A Real Time Hidden Surface Technique . . 335--339 L. S. Levy and R. Melville The algebraic anatomy of programs . . . 340--345 M. Clowes Book Review . . . . . . . . . . . . . . 345--345 B. Higman Book Review . . . . . . . . . . . . . . 345--345 A. D. Woodall Generation of permutation sequences . . 346--349 M. J. R. Healy Book Review . . . . . . . . . . . . . . 349--349 R. Holstein Book Review . . . . . . . . . . . . . . 349--349 M. M. Lehman Book Review . . . . . . . . . . . . . . 349--349 S. Soule A note on the nonrecursive traversal of binary trees . . . . . . . . . . . . . . 350--352 J. M. Brady Hints on proofs by recursion induction 353--355 J. M. Wilson Boolean simplification and integer inequalities . . . . . . . . . . . . . . 356--358 B. C. Brookes Book Review . . . . . . . . . . . . . . 358--358 J. E. Parkin Book Review . . . . . . . . . . . . . . 358--358 G. Wyvill Book Review . . . . . . . . . . . . . . 358--358 R. Mojena Hierarchical grouping methods and stopping rules: An evaluation . . . . . 359--363 C. A. B. Smith Book Review . . . . . . . . . . . . . . 363--363 R. K. Stamper Book Review . . . . . . . . . . . . . . 363--363 D. Defays An efficient algorithm for a complete link method . . . . . . . . . . . . . . 364--366 W. L. Price A controlled random search procedure for global optimisation . . . . . . . . . . 367--370 L. M. Delves Algorithm 96: a linear equation solver for Galerkin and least squares methods 371--374 Anonymous Algorithms Supplement . . . . . . . . . 371--379 L. M. Delves and L. F. Abd. El Al Algorithm 97: The fast Galerkin algorithm for the solution of linear Fredholm equations . . . . . . . . . . . 374--376 W. D. Hoskins and G. E. McMaster Algorithm 98: a note on the solution of certain tridiagonal systems of linear equations . . . . . . . . . . . . . . . 376--378 D. J. Evans and S. A. Smith Algorithm 99: On the construction of balanced binary trees for parallel processing . . . . . . . . . . . . . . . 378--379 M. R. Williams Correspondence . . . . . . . . . . . . . 380--380 W. A. Zaremba Correspondence . . . . . . . . . . . . . 380--381 A. Parkin Correspondence . . . . . . . . . . . . . 381--381 J. Kramer Correspondence . . . . . . . . . . . . . 382--383
N. E. Wiseman and C. I. C. Campbell and J. Harradine On Making Graphic Arts Quality Output by Computer . . . . . . . . . . . . . . . . 2--6 W. Owen Nutt Book Review . . . . . . . . . . . . . . 6--6 R. A. Davenport Distributed or Centralised Data Base . . 7--14 J. L. Armstrong Book Review . . . . . . . . . . . . . . 14--14 M. A. Bramer Book Review . . . . . . . . . . . . . . 14--14 A. Young Book Review . . . . . . . . . . . . . . 14--14 P. Dearnley Monitoring Database System Performance 15--19 J. J. Donovan A note on a performance of VM/370 in the integration of models and data bases . . 20--24 I. A. Clark Strema: Specifying Application Processes Using Streams . . . . . . . . . . . . . 25--30 J. P. Fitch and A. C. Norman A Note on Compacting Garbage Collection 31--34 A. Sloman Book Review . . . . . . . . . . . . . . 34--34 B. Wood Book Review . . . . . . . . . . . . . . 34--34 W. R. Campbell A compiler definition facility based on the syntactic macro . . . . . . . . . . 35--41 J. G. Wolff Recoding of Natural Language for Economy of Transmission or Storage . . . . . . . 42--44 K. W. Morton Review: Recoding of natural language for economy of transmission or storage . . . 44--44 R. M. Lea Text Compression with an Associative Parallel Processor . . . . . . . . . . . 45--56 P. W. Williams Criteria for Choosing Subsets to Obtain Maximum Relative Entropy . . . . . . . . 57--62 N. E. Wiseman Book Review . . . . . . . . . . . . . . 62--62 P. W. Williams The relationship between entropy and file search times . . . . . . . . . . . 63--65 J. L. Szwarcfiter and L. B. Wilson Some properties of ternary trees . . . . 66--72 P. R. Freeman Book Review . . . . . . . . . . . . . . 72--72 C. R. Edwards Some Improved Designs for the Digital Summation Threshold Logic (DSTL) Gate 73--78 D. Bumstead Book Review . . . . . . . . . . . . . . 78--78 J. M. Eves and S. L. Hurst Improvements in Multioutput Threshold-Logic Gates . . . . . . . . . 79--85 C. Day Book Review . . . . . . . . . . . . . . 85--85 S. J. Goldsack Book Review . . . . . . . . . . . . . . 85--85 J. F. Barlow An algorithm for the solution of the postman's problem . . . . . . . . . . . 86--89 G. Norris Discussion and correspondence summary of the report: `The Computer Board: policies past, present and future?' . . 90--91 M. Gordon An Interactive Graphical Minicomputer System for the Management and Exploration of Clinical Renal Data . . . 91--93 Anonymous Advances in computer chess . . . . . . . 94--94
William L. Honig and C. Robert Carlson Toward an Understanding of (Actual) Data Structures . . . . . . . . . . . . . . . 98--104 N. Ahituv and I. Borovits Analysis of the Purchase Option of Computers . . . . . . . . . . . . . . . 105--109 R. H. Bonczek and C. W. Holsapple and A. B. Whinston Information Transferral Within a Distributed Data Base via a Generalised Mapping Language . . . . . . . . . . . . 110--116 J. A. Emerson Book Review: \booktitleAdvanced ANS COBOL with structured programming and High Level COBOL Programming . . . . . . 116--116 R. V. Evans and G. S. Lockington and T. N. Reid A compiler compiler and methodology for problem oriented language compiler implementors . . . . . . . . . . . . . . 117--121 R. E. Small Computational probability and simulation and Mathematical Modelling and Digital Simulation for Engineers and Scientists 121--121 A. Parkin and R. B. Coats EDSIM-Event based Discrete Simulation using General Purpose Languages such as Fortran . . . . . . . . . . . . . . . . 122--127 W. N. Holmes Is APL a programming language? . . . . . 128--131 J. G. Kollias An estimate of seek time for batched searching of random or index sequential structured files . . . . . . . . . . . . 132--133 F. H. Sumner Computer Architecture, second edition 133--133 D. R. Hanson Filters in SL5 . . . . . . . . . . . . . 134--143 E. Gildersleeves Online Review, Vol. 1 No. 1 . . . . . . 143a-143 B. A. Sufrin Compiler Construction . . . . . . . . . 143--143 Gregor V. Bochmann and P. Ward Compiler Writing System for Attribute Grammars . . . . . . . . . . . . . . . . 144--148 D. D. Black Multi-Coordinate Data Presentation . . . 148a-148 I. R. Williams Computational Analysis with the HP-25 Pocket Calculator . . . . . . . . . . . 148--148 I. Bratko and D. Kopec and D. Michie Pattern-Based Representation of Chess End-Game Knowledge . . . . . . . . . . . 149--153 G. M. Bull and S. Gilbey and Kathleen Levine and A. G. Lippiatt and C. H. C. Machin Proteus --- a Microcoded Multiprocessor System . . . . . . . . . . . . . . . . . 154--160 D. R. A. Coan Current trends in programming methodology and Standardised development of computer software . . . . . . . . . . 160--160 M. H. Williams and H. L. Ossher Conversion of Unstructured Flow Diagrams to Structured Form . . . . . . . . . . . 161--167 J. Lewins Simulation of Systems . . . . . . . . . 167--167 P. J. Green and R. Sibson Computing Dirichlet Tessellations in the Plane . . . . . . . . . . . . . . . . . 168--173 D. A. Smith and Pamela S. Guipre Modifications to the Forsythe--Moler Algorithm for Solving Linear Algebraic Systems . . . . . . . . . . . . . . . . 174--177 P. M. Haine Analysis and Design of Sequential Digital Systems . . . . . . . . . . . . 177a-177 D. J. Wheeler Rational Fault Analysis . . . . . . . . 177--177 D. H. McLain Algorithm 100: Vector Approximation to Curves . . . . . . . . . . . . . . . . . 178--180 Anonymous Algorithms Supplement . . . . . . . . . 178--183 L. Hazlewood Algorithm 101: An algorithm for cautious adaptive quadrature . . . . . . . . . . 180--183 P. T. Barry Discussion and Correspondence: the Regional Computing Organisation Network 184--187 A. Parkin Critique on Multi-Criteria Assessment Applied to Alternative Data Processing Systems . . . . . . . . . . . . . . . . 188--190 R. Haentjens and E. Van de Vel Lexical Analysis and the Transportation of Programs . . . . . . . . . . . . . . 190--190 B. Dwyer and J. Inglis Correspondence: On ``Structured programming and input statements'' . . . 190--191 P. Wodon Correspondence: On ``A note on the Towers of Hanoi problem'' . . . . . . . 191--191
A. D. Chambers Computer fraud and abuse . . . . . . . . 194--198 R. C. Backhouse Book Review . . . . . . . . . . . . . . 198--198 M. J. B. Duff Book Review . . . . . . . . . . . . . . 198--198 S. Lavington Book Review . . . . . . . . . . . . . . 198--198 I. Borovits and S. Neumann Internal Pricing for Computer Services 199--204 Anonymous Call for papers . . . . . . . . . . . . 204--204 Eric Foxley A hybrid computer performance modelling system . . . . . . . . . . . . . . . . . 205--209 R. M. Paine Book Review . . . . . . . . . . . . . . 209--209 N. Riley Book Review . . . . . . . . . . . . . . 209--209 W. B. Samson and R. H. Davis Search Times Using Hash Tables for Records with Non-Unique Keys . . . . . . 210--214 P. Wallis Book Review . . . . . . . . . . . . . . 214--214 B. A. Wichmann Book Review . . . . . . . . . . . . . . 214--214 J. L. Armstrong Programming a Parallel Computer for Robot Vision . . . . . . . . . . . . . . 215--218 J. R. Gurd Book Review . . . . . . . . . . . . . . 218--218 I. M. Khabaza Book Review . . . . . . . . . . . . . . 218--218 W. L. Price Simulation Studies of Data Communication Networks Operating in Datagram Mode . . 219--223 I. Aleksander Book Review . . . . . . . . . . . . . . 223--223 A. M. Cruise Book Review . . . . . . . . . . . . . . 223--223 P. G. Barker and P. S. Jones Syntactic definition and parsing of molecular formulae. Part 2: Graphical synthesis of molecular formulae for data base queries . . . . . . . . . . . . . . 224--233 D. W. Barron Book Review . . . . . . . . . . . . . . 233--233 R. W. Hiorns Book Review . . . . . . . . . . . . . . 233--233 C. Potter Book Review . . . . . . . . . . . . . . 233--233 M. H. Williams Static Semantic Features of Algol60 and Basic . . . . . . . . . . . . . . . . . 234--242 F. H. George Book Review . . . . . . . . . . . . . . 242--242 P. J. Moylan Book Review . . . . . . . . . . . . . . 242--242 R. Sibson Locally equiangular triangulations . . . 243--245 R. W. Hiorns Book Review . . . . . . . . . . . . . . 245--245 M. V. Wilkes Book Review . . . . . . . . . . . . . . 245--245 M. R. Patel and K. H. Bennett Analysis of Speed of a Binary Divider Using a Variable Number of Shifts Per Cycle . . . . . . . . . . . . . . . . . 246--252 A. van Oosterom Triangulating the Human Torso . . . . . 253--258 H. R. A. Townsend Analysing Electroencephalograms . . . . 259--262 J. Mottl and L. Mottlová Description of a program for solving problems of nonlinear programming . . . 263--269 B. Richards Book Review . . . . . . . . . . . . . . 269--269 D. J. McConalogue Algorithm 102: Convolution integrals involving probability distribution functions . . . . . . . . . . . . . . . 270--272 Anonymous Algorithms supplement . . . . . . . . . 270--277 V. K. Garg Algorithm 103: Computing the Bessel functions $Y_n(x+iy)$ and $K_n(x+iy)$ 272--276 Anonymous Editorial notes: Reprinting of Algorithms . . . . . . . . . . . . . . . 276--276 A. Obru\vca Algorithm 1: Mintree . . . . . . . . . . 276--276 Anthony E. N. T. Pitman Note on Algorithm 1: Mintree . . . . . . 276--276 M. H. Rodgers and R. H. Thomason Certification of Algorithm 1: Mintree 276--277 J. Boothroyd Certification of Algorithm 1: Mintree 277--277 I. D. Hill and Alex K. Obru\vca Remarks on Algorithm 1: Mintree . . . . 277--277 Alex K. Obru\vca Remark on Algorithm 1: Mintree . . . . . 277--277 J. M. Triance Discussion and correspondence: a study of COBOL portability . . . . . . . . . . 278--281 R. M. De Morgan and I. D. Hill and B. A. Wichmann Modified Algol 60 and the step-until element . . . . . . . . . . . . . . . . 282--285 I. M. Barron Book Review . . . . . . . . . . . . . . 285--285 I. M. Barron Book Review . . . . . . . . . . . . . . 285--285 E. C. Coles Book Review . . . . . . . . . . . . . . 285--285 B. M. Wood Book Review . . . . . . . . . . . . . . 285--285 P. B. Fellgett Book Review . . . . . . . . . . . . . . 286--286 P. B. Fellgett Book Review . . . . . . . . . . . . . . 286--286
R. Maes On the Representation of Program Structures by Decision Tables: a Critical Assessment . . . . . . . . . . 290--295 M. K. Roy Evaluation of Permutation Algorithms . . 296--301 J. S. Rohl Generating Permutations by Choosing . . 302--305 P. A. Lee A reconsideration of the recovery block scheme . . . . . . . . . . . . . . . . . 306--310 M. Osborne and F. Little An implementation of structured programming in APL . . . . . . . . . . . 311--315 A. M. Andrew Book Review . . . . . . . . . . . . . . 315--315 A. S. Tanenbaum A comparison of Pascal and Algol 68 . . 316--323 B. A. Lewis and J. S. Robinson Triangulation of Planar Regions with Applications . . . . . . . . . . . . . . 324--332 Anonymous Errata . . . . . . . . . . . . . . . . . 332--332 M. A. Hennell An experimental testbed for numerical software . . . . . . . . . . . . . . . . 333--336 M. P. J. Curran Book review: \booktitleComputer Methods for Mathematical Computations, by G. Forsythe, M. Malcolm, and C. Moler, 1977; 259 pages. (Prentice/Hall, \pounds 12.80) . . . . . . . . . . . . . . . . . 336--336 M. Evans Book review: \booktitleComputer Operating Systems, by D. W. Barron; 1977; 135 pages (Chapman and Hall), \pounds 2.95 . . . . . . . . . . . . . . 336--336 R. E. Small Book review: \booktitleOn-Line Data Bases: Infotech State of the Art Report, 1: Analysis and Bibliography, 2: Invited Papers (Infotech, \pounds 110) . . . . . 336--336 W. M. Turski A model of nonmorphological data collection based on sentential calculus 337--340 P. W. Williams Balancing demand in a hierarchical structure . . . . . . . . . . . . . . . 341--346 Anonymous Conference and course . . . . . . . . . 346--346 A. K. Burston and D. J. Kinniment and Hilary Kahn A design language for asynchronous logic 347--354 I. M. Barron Book Review . . . . . . . . . . . . . . 354--354 D. T. Muxworthy Book Review . . . . . . . . . . . . . . 354--354 J. C. Romão and R. Vilela Mendes Algorithms for Multidimensional Numerical Integration with Singularities 355--358 A. E. Chantler Book Review . . . . . . . . . . . . . . 358--358 J. Smith and F. E. Knowles Book Review . . . . . . . . . . . . . . 358--358 A. Swift and G. R. Lindfield Comparison of a Continuation Method with Brent's Method for the Numerical Solution of a Single Nonlinear Equation 359--362 J. R. Cash and C. B. Liem On the computational aspects of semi-implicit Runge--Kutta methods . . . 363--365 B. S. Lee Use of case studies in teaching data processing . . . . . . . . . . . . . . . 366--372 P. Giles Book Review . . . . . . . . . . . . . . 372--372 C. R. Snow Book Review . . . . . . . . . . . . . . 372--372 G. L. Farr Algorithm 104: Generation of the alphabetically ordered sequences from a set of $N$ distinct objects . . . . . . 373--373 Anonymous Algorithms supplement . . . . . . . . . 373--377 James J. Buckley and Robert A. Fleck, Jr. Algorithm 105: Determining the number of internal rates of return . . . . . . . . 373--377 A. C. Day Algorithms supplement: Statement of policy . . . . . . . . . . . . . . . . . 377--377 M. H. Williams and E. V. C. Fielding Discussion and correspondence: automatic generation of payroll programs . . . . . 378--380 L. J. Mazlack Predicting student success in an introductory programming course . . . . 380--381 S. J. Goldsack Correspondence: Semantic definition of linear control algorithms . . . . . . . 381--382 R. Haskell and The Editor Correspondence: Dissemination of specialised information . . . . . . . . 382--382 Eric L. V. Hope Correspondence: Structured programming input statements . . . . . . . . . . . . 382--382 C. B. Dunham Correspondence: Checking reproduction of published programs . . . . . . . . . . . 383--383 Bruce L. Golden Correspondence: On ``An algorithm for the solution of the postman's problem'' 383--383 W. Little and D. A. Smith Correspondence: On ``Modifications to the Forsythe--Moler algorithm for solving linear algebraic systems'' . . . 383--383 J. M. Brady Book review: \booktitleStructural Pattern Recognition, by T. Pavlidis, 1977 . . . . . . . . . . . . . . . . . . 384--384 J. M. Brady Book Review . . . . . . . . . . . . . . 384--384 D. Hitchin Correspondence: On ``Modifications to the Forsythe--Moler algorithm for solving linear algebraic systems'' . . . 384--384
Anonymous Editorial . . . . . . . . . . . . . . . 2--2 Lewis Corner Book reviews: \booktitleModel Building in Mathematical Programming, by H. P. Williams, 1978; \booktitleComputer Simulation and Modeling: An Introduction, by R. S. Lehman . . . . . 2--2 R. Burdekin and R. S. Scowen Computers and the construction of economic models . . . . . . . . . . . . 3--10 K. Setchfield Book Review . . . . . . . . . . . . . . 10--10 T. Briggs A review of road traffic simulation methods using a general purpose digital computer . . . . . . . . . . . . . . . . 11--16 M. J. B. Duff Book Review . . . . . . . . . . . . . . 16--16 J. J. Florentin Book Review . . . . . . . . . . . . . . 16--16 R. L. Grimsdale Book Review . . . . . . . . . . . . . . 16--16 N. Riley Book Review . . . . . . . . . . . . . . 16--16 C. B. Spengler and J. B. Westwood Assessing data retrieval capabilities: a case study . . . . . . . . . . . . . . . 17--21 A. P. Black Book Review . . . . . . . . . . . . . . 21--21 P. A. Lee Book Review . . . . . . . . . . . . . . 21--21 Eva Huzan Modelling of Indexed Sequential Files: Monitoring Disc Transfers . . . . . . . 22--27 A. J. Thomas Book Review . . . . . . . . . . . . . . 27--27 P. Wallis Book Review . . . . . . . . . . . . . . 27--27 J. F. A. Wiederhold Tuning to Service Standards without Monitors . . . . . . . . . . . . . . . . 28--36 B. Barber Book Review . . . . . . . . . . . . . . 36--36 A. Chantler Book Review . . . . . . . . . . . . . . 36--36 A. Chantler Book Review . . . . . . . . . . . . . . 36--36 R. Chattergy and U. W. Pooch A distributed function computer with dedicated processors . . . . . . . . . . 37--40 A. Rogers Book Review . . . . . . . . . . . . . . 40--40 Y. Kobayashi and T. L. Kunii A simulation of a minicomputer controlled system and its use as a debugging tool . . . . . . . . . . . . . 41--49 R. L. Grimsdale Book Review . . . . . . . . . . . . . . 49--49 R. C. Witts Book Review . . . . . . . . . . . . . . 49--49 P. J. Brown Software Methods for Virtual Storage of Executable Code . . . . . . . . . . . . 50--52 A. Young Book Review . . . . . . . . . . . . . . 52--52 M. A. Hennell and D. Hedley An experimental testbed for numerical software. II. ALGOL 68 . . . . . . . . . 53--56 J. C. Turner The conditional distribution of waiting time given queue length in a computer system . . . . . . . . . . . . . . . . . 57--62 D. D. Black Book Review . . . . . . . . . . . . . . 62--62 M. McKay Book Review . . . . . . . . . . . . . . 62--62 R. J. Paul Book Review . . . . . . . . . . . . . . 62--62 F. G. Pagan Algol 68 as a Metalanguage for Denotational Semantics . . . . . . . . . 63--66 K. Boardman Book Review . . . . . . . . . . . . . . 66--66 P. W. Williams and D. Woodhead Computer assisted analysis of cryptic crosswords . . . . . . . . . . . . . . . 67--70 A. G. Bell and N. Jacobi How to read, make and store chess moves 71--75 G. Z. Ben-Yaacov Interactive Computation and Data Management for Power System Studies . . 76--79 Anonymous Conferences and courses . . . . . . . . 79--79 G. W. Hill Cyclic properties of pseudo-random sequences of Mersenne prime residues . . 80--85 J. Boothroyd Certification of Algorithm 2: Fibonacci search . . . . . . . . . . . . . . . . . 86--86 M. C. Pike and J. Pixner Algorithm 2: Fibonacci search . . . . . 86--86 I. D. Hill Algorithm 3: Easter . . . . . . . . . . 86--87 Anonymous Algorithms supplement . . . . . . . . . 86--90 J. Boothroyd Certification of Algorithm 3: Easter . . 87--87 J. Randle Certification of Algorithm 3: Easter . . 87--87 I. D. Hill and M. C. Pike Algorithm 4: TWOBYTWO . . . . . . . . . 87--88 M. C. Pike Algorithm 5: RANCOMB . . . . . . . . . . 88--88 J. Boothroyd Algorithm 6: PERM . . . . . . . . . . . 88--89 J. Boothroyd Algorithm 7: MINX . . . . . . . . . . . 89--89 C. M. Reeves Algorithm 8: SUD . . . . . . . . . . . . 89--89 C. M. Reeves Algorithm 9: Boyserf . . . . . . . . . . 89--90 Anonymous Algorithms supplement --- Supplement of Policy . . . . . . . . . . . . . . . . . 90--90 Anonymous Erratum: Algorithm 105 . . . . . . . . . 90--90 R. F. Shepherd Algorithms supplement: Statement of policy . . . . . . . . . . . . . . . . . 90--90 N. Marovac Discussion and correspondence: Microcomputers in computer science programmes . . . . . . . . . . . . . . . 91--94
Susan Jones A network display program . . . . . . . 98--104 M. Flower Book Review . . . . . . . . . . . . . . 104--104 I. M. Khabaza Book Review . . . . . . . . . . . . . . 104--104 A. T. Arblaster and M. E. Sime and T. R. G. Green Jumping to Some Purpose . . . . . . . . 105--109 D. W. B. Bale Book Review . . . . . . . . . . . . . . 109--109 P. Rivett Book Review . . . . . . . . . . . . . . 109--109 F. Mavaddat and B. Parhami A data structure for family relations 110--113 J. R. Oliver and R. S. Newton Practical Experience with Algol 68-Rt 114--118 Sallie S. Nelson CONSIM: a Study of Control Issues in Conversational Simulation . . . . . . . 119--126 Steven J. Harrington A New Symbolic Integration System in REDUCE . . . . . . . . . . . . . . . . . 127--131 P. I. P. Boulton and J. R. Goguen A machine description language . . . . . 132--135 G. A. Korn and O. A. Palusinski Application of a Digital Computer Simulation Language to Control Hybrid Computer Monte Carlo Studies . . . . . . 136--141 A. Silberschatz On the safety of the I/O primitive in Concurrent PASCAL . . . . . . . . . . . 142--145 R. A. Huntly Book Review . . . . . . . . . . . . . . 145--145 J. A. S. Weir Book Review . . . . . . . . . . . . . . 145--145 J. L. Keedy and K. Ramamohanarao and J. Rosenberg On Implementing Semaphores with Sets . . 146--150 P. A. Lee Book Review . . . . . . . . . . . . . . 150--150 D. Morris Book Review . . . . . . . . . . . . . . 150--150 B. Sufrin Book Review . . . . . . . . . . . . . . 150--150 R. S. Bird Recursion Elimination with Variable Parameters . . . . . . . . . . . . . . . 151--154 D. Bumstead Book Review . . . . . . . . . . . . . . 154--154 D. M. Nessett and O. W. Rechard Allocation Algorithms for Dynamically Microprogrammable Multiprocessor Systems 155--163 G. F. Miller Book Review . . . . . . . . . . . . . . 163--163 P. Wallis Book Review . . . . . . . . . . . . . . 163--163 M. H. Williams Conditions for Extended Operator Precedence Parsing . . . . . . . . . . . 164--168 Anonymous New approaches to systems analysis and design: a one-day seminar held as a tribute to Eric Mutch . . . . . . . . . 168--168 S. S. Yau and Y. S. Tang Generation of Shortest Test Sequences for Detecting Individual Faults of Sequential Circuits . . . . . . . . . . 169--172 S. L. Hurst An engineering consideration of spectral transforms for ternary logic synthesis 173--183 J. R. Cash and J. C. P. Miller On an Iterative Approach to the Numerical Solution of Difference Schemes 184--187 Anonymous Algorithms supplement . . . . . . . . . 188--189 A. Brown Algorithm 106: An algorithm for updating an ordered list on a VDU . . . . . . . . 188--189 J. Albus and R. H. Anderson and J. M. Brayer and R. DeMori and K. S. Fu and S. L. Horowitz and B. Moayer and T. Pavlidis and W. Stallings and T. Vamos Correspondence . . . . . . . . . . . . . 190--191 A. A. Kaposi and D. F. Gillies and D. F. Cowell Correspondence . . . . . . . . . . . . . 190--191 J. S. Rohl Correspondence . . . . . . . . . . . . . 191--191
S. J. Waters Towards Comprehensive Specifications . . 195--199 P. A. Dearnley Application Level Microcode to Speed Data Base Management . . . . . . . . . . 200--202 M. Wells Book Review . . . . . . . . . . . . . . 202--202 C. Lazos and J. R. Yandle Improving CPU Utilisation in a Multiprogramming System . . . . . . . . 203--205 M. H. Rogers Book Review . . . . . . . . . . . . . . 205--205 R. C. Witts Book Review . . . . . . . . . . . . . . 205--205 F. W. Burton and J. Kollias Optimising Disc Head Movements in Secondary Key Retrievals . . . . . . . . 206--208 Anonymous Bcs award scheme . . . . . . . . . . . . 208--208 Anonymous Conference round up . . . . . . . . . . 208--208 G. Haring and R. Posch and C. Leonhardt and G. Gell The use of a synthetic jobstream in performance evaluation . . . . . . . . . 209--219 J. Emerson Book Review . . . . . . . . . . . . . . 219--219 S. O'Connell Book Review . . . . . . . . . . . . . . 219--219 O. Nevalainen and J. Teuhola Priority Queue Administration by Sublist Index . . . . . . . . . . . . . . . . . 220--225 E. F. Elsworth Compilation via an Intermediate Language 226--233 D. Jacobs Book Review . . . . . . . . . . . . . . 233--233 D. Park Book Review . . . . . . . . . . . . . . 233--233 M. Di Manzo and A. L. Frisiani and G. Olimpo Loop Optimisation for Parallel Processing . . . . . . . . . . . . . . . 234--239 J. J. Florentin Book Review . . . . . . . . . . . . . . 239--239 P. A. Lee Book Review . . . . . . . . . . . . . . 239--239 D. Simpson Book Review . . . . . . . . . . . . . . 239--239 Pierre Deransart Proof by Semantic Attributes of a Lisp Compiler . . . . . . . . . . . . . . . . 240--245 D. Simpson Book Review . . . . . . . . . . . . . . 245--245 T. Vickers Book Review . . . . . . . . . . . . . . 245--245 M. Bozyigit and Y. Paker A fixed routing problem in large and high connectivity networks . . . . . . . 246--250 A. Thomson Book Review . . . . . . . . . . . . . . 250--250 Z. M. Lotfi and A. J. Tosser Minimising the NAND-NOR-XOR Network of Modulo 2 Sum of Boolean Products . . . . 251--255 J. Mottl Description of a Program for Nonlinear Programming . . . . . . . . . . . . . . 256--261 J. M. Brady Book Review . . . . . . . . . . . . . . 261--261 J. Lewins Book Review . . . . . . . . . . . . . . 261--261 P. J. Green and B. W. Silverman Constructing the Convex Hull of a Set of Points in the Plane . . . . . . . . . . 262--266 E. Best Book Review . . . . . . . . . . . . . . 266--266 D. L. Fisher Book Review . . . . . . . . . . . . . . 266--266 R. H. Barlow and D. J. Evans A parallel organisation of the bisection algorithm . . . . . . . . . . . . . . . 267--269 K. A. Robinson An entity/event data modelling method 270--279 Anonymous Discussion on ``An entity/event data modelling method . . . . . . . . . . . . 279--281 W. L. Price and M. Dowson Algorithm 107: a weighted simplex procedure for the solution of simultaneous nonlinear equations . . . . 282--282 Anonymous Algorithms supplement . . . . . . . . . 282--285 Ole Òsterby Algorithm 108: Efficient solution of tridiagonal linear systems . . . . . . . 283--285 P. Naur Critique of the ISO data processing vocabulary . . . . . . . . . . . . . . . 286--286 Jane Hayden Correspondence: Nonmorphological data collection . . . . . . . . . . . . . . . 286--287 P. Naur Discussion and correspondence: critique of the ISO data processing vocabulary 286--288 David Jacobs Correspondence: Validating software . . 287--287 M. A. Sandys and Aleph Null Correspondence: Point in polygon . . . . 287--288 A. N. Walker and The Editor Algorithms: On ``Algorithm 1: Mintree'' 288--288
T. J. Howkins and M. T. Harandi Towards More Portable Cobol . . . . . . 290--295 Anonymous Calls for papers . . . . . . . . . . . . 295--295 L. Moore Design for a Transportable Job Organisation Language . . . . . . . . . 296--302 E. Gudes and H. S. Koch and F. A. Stahl Security in a Multi-Level Structured Model of a Data Base . . . . . . . . . . 303--306 P. A. Clarke Book Review . . . . . . . . . . . . . . 306--306 D. B. Johnson Book Review . . . . . . . . . . . . . . 306--306 W. Burton A FORTRAN preprocessor to support encapsulated data abstraction definitions . . . . . . . . . . . . . . 307--312 D. B. G. Edwards Book Review . . . . . . . . . . . . . . 312--312 D. Hebditch Book Review . . . . . . . . . . . . . . 312--312 T. Leipälä and O. Nevalainen A plotter sequencing system . . . . . . 313--316 B. A. Wichmann and J. Du Croz A program to calculate the GAMM measure 317--322 M. Clowes Review: Cad meets Ai . . . . . . . . . . 322--322 D. L. Fisher Review: Cad meets Ai . . . . . . . . . . 322--322 C. Lazos and A. Vafiadis A Method to Estimate the I/O Buffer Size in a Computer System . . . . . . . . . . 323--327 R. M. Lea Book Review . . . . . . . . . . . . . . 327--327 I. Marriott Book Review . . . . . . . . . . . . . . 327--327 P. I. P. Boulton and M. A. R. Kittler Estimating Program Reliability . . . . . 328--331 P. G. Raymont Book Review . . . . . . . . . . . . . . 331--331 A. J. Thomas Book Review . . . . . . . . . . . . . . 331--331 H. R. Simpson and K. Jackson Process Synchronisation in MASCOT . . . 332--345 I. P. Page Book Review . . . . . . . . . . . . . . 345--345 A. S. Radford Book Review . . . . . . . . . . . . . . 345--345 C. M. Reeves Free store distribution under random fit allocation: Part 1 . . . . . . . . . . . 346--351 R. W. Last Book Review . . . . . . . . . . . . . . 351--351 J. R. Haley and A. S. Noetzell A study of processing repetition . . . . 352--356 J. M. Brady Book Review . . . . . . . . . . . . . . 356--356 A. C. Day Book Review . . . . . . . . . . . . . . 356--356 J. Loetzsch and M. Machura and W. Paetzold Sample implementation of a special purpose language by the DEPOT system . . 357--362 M. Thomas Book Review . . . . . . . . . . . . . . 362--362 A. Young Book Review . . . . . . . . . . . . . . 362--362 J. Jelínek An Algebraic Theory for Parallel Processor Design . . . . . . . . . . . . 363--375 P. T. Kirstein Book Review . . . . . . . . . . . . . . 375--375 M. J. C. Gordon On the power of list iteration . . . . . 376--379 G. Duncan Q charts --- a method of specification 380--381 G. Duncan Discussion and correspondence Q charts --- a method of specification . . . . . 380--382 K. M. Keir Correspondence: Vector approximation to curves . . . . . . . . . . . . . . . . . 381--381 P. Giles Book Review . . . . . . . . . . . . . . 382--382 Anonymous Algorithms supplement . . . . . . . . . 383--383 I. D. Hill Algorithm 109: Golden section search . . 383--384
L. Lipsky A Study of time sharing systems considered as queueing networks of exponential servers . . . . . . . . . . 290--297 Anonymous Calls for Papers . . . . . . . . . . . . 297--297 C. M. Reeves Free store distribution under random fit allocation: part 2 . . . . . . . . . . . 298--306 Anonymous Books reviewed in this issue . . . . . . 306--306 G. Schmidt and T. Ströhlein Timetable construction --- an annotated bibliography . . . . . . . . . . . . . . 307--316 H. Quilliam Book Review . . . . . . . . . . . . . . 316--316 G. Rzveski Book Review . . . . . . . . . . . . . . 316--316 A. Boccalatte and M. Di Manzo An approach to the detection of semantic errors . . . . . . . . . . . . . . . . . 317--323 T. A. Band Book Review . . . . . . . . . . . . . . 323--323 F. E. Hinchcliff Book Review . . . . . . . . . . . . . . 323--323 D. Y. Feng and R. F. Riesenfeld Some new surface forms for computer aided geometric design . . . . . . . . . 324--331 T. I. Fenner and G. Loizou A binary tree representation and related algorithms for generating integer partitions . . . . . . . . . . . . . . . 332--337 P. J. L. Wallis Book Review . . . . . . . . . . . . . . 337--337 A. Albano and R. Orsini A heuristic solution of the rectangular cutting stock problem . . . . . . . . . 338--343 Anonymous Visiting graduate teaching positions at the University of Helsinki . . . . . . . 343--343 Y. L. Varol On a subset of all the permutations of $n$ marks . . . . . . . . . . . . . . . 344--346 M. A. Bramer Correct and optimal strategies in game playing programs . . . . . . . . . . . . 347--352 A. Blanin Book Review . . . . . . . . . . . . . . 352--352 A. E. Glennie Book Review . . . . . . . . . . . . . . 352--352 I. Bratko and D. Michie An advice program for a complex chess programming task . . . . . . . . . . . . 353--359 D. May Book Review . . . . . . . . . . . . . . 359--359 D. J. Wheeler Book Review . . . . . . . . . . . . . . 359--359 J. Mottl Description of a program for nonlinear programming: special problem of bivalent nonlinear programming . . . . . . . . . 360--368 A. E. Glennie Book Review . . . . . . . . . . . . . . 368--368 J. M. Smith Book Review . . . . . . . . . . . . . . 368--368 D. Michie Expert systems . . . . . . . . . . . . . 369--376 R. S. Lemos Discussion and correspondence: Measuring students' attitudes towards structured walk-throughs . . . . . . . . . . . . . 377--383 Anonymous Erratum . . . . . . . . . . . . . . . . 383--383 R. I. Kitney Book Review . . . . . . . . . . . . . . 383--383
K. J. Overholt Note on Algorithm 2: Fibonacci search 414--414 I. D. Hill and M. C. Pike Note on Algorithm 4: TWO BY TWO . . . . 416--416 M. C. Pike and I. D. Hill and F. D. James Note on Algorithm 2: Fibonacci search, and on Algorithm 7: MINX . . . . . . . . 416--417
J. Boothroyd Algorithm 25: Sort a section of the elements of an array by determining the rank of each element . . . . . . . . . . 308--309 J. Boothroyd Algorithm 26: Order the subscripts of an array section according to the magnitudes of the elements . . . . . . . 309--310
Peter Fellgett Correspondence: What is an analyst? . . 104--104
Mary Almond A University faculty timetable . . . . . 215--217 M. J. Savage Junction Optimisation Technique . . . . 268--272 J. N. Lyness The Effect of Inadequate Convergence Criteria in Automatic Routines . . . . . 279--281 H. Späth Algorithm 42: Interpolation by certain quintic splines . . . . . . . . . . . . 292--293
P. J. H. King The interpretation of limited entry decision table format and relationships among conditions . . . . . . . . . . . . 320--326 W. F. Lunnon A postage stamp problem . . . . . . . . 377--380 C. G. Broyden Algorithm 44: Solution of nonlinear simultaneous equations . . . . . . . . . 406--408 I. D. Hill Note on Algorithms 25, 26. 25: Sort a section of the elements of an array by determining the rank of each element. 26: Order the subscripts of an array section according to the magnitudes of the elements . . . . . . . . . . . . . . 409--409 E. S. Deutsch Correspondence: Comments on a line thinning algorithm . . . . . . . . . . . 412--412
I. D. Hill Correspondence: Jumping to some purpose 94--94
N. B. Taylor Correspondence: Jumping to some purpose 189--190
G. L. Robinson Correspondence: Jumping to some purpose 288--288
Marek Missala and Piotr Rudnicki Correspondence: Jumping to some purpose 286--286
Walter Soden Note: a Method of Radix Conversion . . . 273--274