freebsd-dev/contrib/libf2c/libF77/z_cos.c
1999-09-19 05:59:11 +00:00

16 lines
296 B
C

#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);
}