libf2c/libF77/z_cos.c

   1 #include "f2c.h"
   2
   3 #undef abs
   4 #include "math.h"
   5 void
   6 z_cos (doublecomplex * r, doublecomplex * z)
   7 {
   8   double zi = z->i, zr = z->r;
   9   r->r = cos (zr) * cosh (zi);
  10   r->i = -sin (zr) * sinh (zi);
  11 }