winsup/mingw/mingwex/complex/cexpl.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

/*
   cexpl.c
   Contributed by Danny Smith
   2005-01-04
*/

#include <math.h>
#include <complex.h>

/* cexp (x + I * y) = exp (x) * cos (y) + I * exp (x) * sin (y) */

long double complex cexpl (long double complex Z)
{
  long double complex  Res;
  long double rho = expl (__real__ Z);
  __real__ Res = rho * cosl(__imag__ Z);
  __imag__ Res = rho * sinl(__imag__ Z);
  return Res;
}