creall.3.gz

CREAL

NAME

creal, crealf, creall - get real part of a complex number

SYNOPSIS

#include <complex.h> I double creal(double complex z );
I float crealf(float complex z );
I long double creall(long double complex z ); Link with -lm.

DESCRIPTION

The R creal () function returns the real part of the complex number z.
One has z = creal(z) + I * cimag(z).

CONFORMING TO

C99

NOTES

The gcc supports also __real__. That is a GNU extension.

SEE ALSO

cabs(3), cimag(3), complex(7)