libf2c/libF77/c_cos.c

   1 #include "f2c.h"
   2
   3 #ifdef KR_headers
   4 extern double sin(), cos(), sinh(), cosh();
   5
   6 VOID c_cos(r, z) complex *r, *z;
   7 #else
   8 #undef abs
   9 #include "math.h"
  10
  11 void c_cos(complex *r, complex *z)
  12 #endif
  13 {
  14         double zi = z->i, zr = z->r;
  15         r->r =   cos(zr) * cosh(zi);
  16         r->i = - sin(zr) * sinh(zi);
  17         }