src/complex/cacosh.c

   1 #include "complex_impl.h"
   2
   3 /* acosh(z) = i acos(z) */
   4
   5 double complex cacosh(double complex z)
   6 {
   7         z = cacos(z);
   8         return CMPLX(-cimag(z), creal(z));
   9 }