1 #include "complex_impl.h"
3 // FIXME: Hull et al. "Implementing the complex arcsine and arccosine functions using exception handling" 1997
5 /* acos(z) = pi/2 - asin(z) */
7 double complex cacos(double complex z)
10 return CMPLX(M_PI_2 - creal(z), -cimag(z));