CREAL(3) complex math routines CREAL(3)NAME
creal, crealf, creall - get real part of a complex number
SYNOPSIS
#include <complex.h>
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
Link with -lm.
DESCRIPTION
The creal() function returns the real part of the complex number z.
One has z = creal(z) + I*cimag(z).
NOTE
The gcc supports also __real__. That is a GNU extension.
CONFORMING TO
C99
SEE ALSOcabs(3), cimag(3), complex(7)
2002-07-28 CREAL(3)