| #include "f2c.h" | |
| #ifdef KR_headers | |
| extern double sin(), cos(), sinh(), cosh(); | |
| VOID c_cos(resx, z) complex *resx, *z; | |
| #else | |
| #undef abs | |
| #include <math.h> | |
| void c_cos(complex *resx, complex *z) | |
| #endif | |
| { | |
| complex res; | |
| res.r = cos(z->r) * cosh(z->i); | |
| res.i = - sin(z->r) * sinh(z->i); | |
| resx->r = res.r; | |
| resx->i = res.i; | |
| } |