src/complex/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(CMPLX(-cimag(z), creal(z)));
   8         return CMPLX(cimag(z), -creal(z));
   9 }