creal, crealf, creall — get real part of a complex number
#include <complex.h>
double creal( |
double complex | z); |
float
crealf( |
float complex | z); |
long
double creall( |
long double complex | z); |
Link with −lm.
The creal() function returns
the real part of the complex number z.
One has z = creal(z) + I * cimag(z).