SBIS0 3CW "22 April 2008" "mathcw-1.00"

Table of contents


NAME

sbis0f, sbis0, sbis0l, sbis0w, sbis0q, sbis0ll, sbis0df, sbis0d, sbis0dl, sbis0dll - exponentially-scaled modified spherical Bessel function of first kind and order 0

SYNOPSIS

cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ]

#include <mathcw.h>

extern float sbis0f (float x);

extern double sbis0 (double x);

extern long double sbis0l (long double x);

extern __float80 sbis0w (__float80 x);

extern __float128 sbis0q (__float128 x);

extern long_long_double sbis0ll (long_long_double x);

extern decimal_float sbis0df (decimal_float x);

extern decimal_double sbis0d (decimal_double x);

extern decimal_long_double sbis0dl (decimal_long_double x);

extern decimal_long_long_double sbis0dll (decimal_long_long_double x);

NB: Functions with prototypes containing underscores in type names may be available only with certain extended compilers.


DESCRIPTION

Compute the exponentially-scaled modified spherical Bessel function of the first kind and order 0, is(0,x).

The modified spherical Bessel functions provided by these software implementations are defined according to Chapter 10, Bessel Functions of Fractional Order, of the Handbook of Mathematical Functions, edited by Milton Abramowitz and Irene A. Stegun, National Bureau of Standards Applied Mathematics Series #55, US Department of Commerce, Washington, DC (1964).


CAVEAT

Although in mathematics, uppercase letters name the ordinary and modified Bessel functions, and lowercase letters name the spherical Bessel functions, the lowercase names of the POSIX Bessel functions mean the former, not the latter.

RETURN VALUES

If the argument is finite, its exponentially-scaled modified spherical Bessel function value of the first kind and order 0 is returned. Otherwise, a quiet NaN is returned.

ERRORS

If the argument is a NaN, errno is set to EDOM, and that NaN is returned.

SEE ALSO

bi0(3CW), bi1(3CW), bin(3CW), bis0(3CW), bis1(3CW), bisn(3CW), bk0(3CW), bk1(3CW), bkn(3CW), bks0(3CW), bks1(3CW), bksn(3CW), j0(3CW), j1(3CW), jn(3CW), sbi0(3CW), sbi1(3CW), sbin(3CW), sbis1(3CW), sbisn(3CW), sbj0(3CW), sbj1(3CW), sbjn(3CW), sbk0(3CW), sbk1(3CW), sbkn(3CW), sbks0(3CW), sbks1(3CW), sbksn(3CW), sby0(3CW), sby1(3CW), sbyn(3CW), vbi(3CW), vbis(3CW), vbj(3CW), vbk(3CW), vbks(3CW), vby(3CW), vsbi(3CW), vsbis(3CW), vsbj(3CW), vsbk(3CW), vsbks(3CW), vsby(3CW), y0(3CW), y1(3CW), yn(3CW).