+++ /dev/null
-#include "f2c.h"
-
-#ifdef KR_headers
-double sin(), cos(), sinh(), cosh();
-VOID z_cos(r, z) doublecomplex *r, *z;
-#else
-#undef abs
-#include "math.h"
-void z_cos(doublecomplex *r, doublecomplex *z)
-#endif
-{
- double zi = z->i, zr = z->r;
- r->r = cos(zr) * cosh(zi);
- r->i = - sin(zr) * sinh(zi);
- }