newlib-cygwin/winsup/mingw/mingwex/complex/cexpl.c

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/*
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;
}