cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ] #include <mathcw.h> extern float eljandf (float u, float k); extern double eljand (double u, double k); extern long double eljandl (long double u, long double k); extern __float80 eljandw (__float80 u, __float80 k); extern __float128 eljandq (__float128 u, __float128 k); extern long_long_double eljandll (long_long_double u, long_long_double k); extern decimal_float eljanddf (decimal_float u, decimal_float k); extern decimal_double eljandd (decimal_double u, decimal_double k); extern decimal_long_double eljanddl (decimal_long_double u, decimal_long_double k); extern decimal_long_long_double eljanddll (decimal_long_long_double u, decimal_long_long_double k);
NB: Functions with prototypes containing underscores in type names may be available only with certain extended compilers.
whereeljand(v, k) = and(v, k) = u,
eljnd(u,k) = nd(u,k) = v.
The magnitude of the argument v must be in [+1,Infinity), and the argument k (the modulus) is required to be in [-1,+1].
See M. Abramowitz & I. A. Stegun, Handbook of Mathematical Functions, Chapter 16, for definitions of the Jacobian elliptic, theta, and zeta functions.