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

20 lines
330 B
C
Executable File

/*
clogf.c
Contributed by Danny Smith
2004-12-24
*/
/* clog (x + I * y) = log (hypot (x, y)) + I * atan2 (y, x) */
#include <math.h>
#include <complex.h>
float complex clogf (float complex Z)
{
float complex Res;
__real__ Res = logf (_hypot (__real__ Z, __imag__ Z));
__imag__ Res = cargf (Z);
return Res;
}