libf2c/libF77/c_exp.c

   1 #include "f2c.h"
   2
   3 #ifdef KR_headers
   4 extern double exp(), cos(), sin();
   5
   6  VOID c_exp(resx, z) complex *resx, *z;
   7 #else
   8 #undef abs
   9 #include <math.h>
  10
  11 void c_exp(complex *resx, complex *z)
  12 #endif
  13 {
  14 double expx;
  15 complex res;
  16
  17 expx = exp(z->r);
  18 res.r = expx * cos(z->i);
  19 res.i = expx * sin(z->i);
  20
  21 resx->r = res.r;
  22 resx->i = res.i;
  23 }