extend cmath (some of the functions are dummy)
[libm] / src / cmath / csin.c
1 #include "libm.h"
2
3 /* sin(z) = -i sinh(i z) */
4
5 double complex csin(double complex z)
6 {
7         z = csinh(cpack(-cimag(z), creal(z)));
8         return cpack(cimag(z), -creal(z));
9 }