CREAL

Section: complex math routines (3)
Updated: 2002-07-28
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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 ALSO

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
NOTE
CONFORMING TO
SEE ALSO

linux.jgfs.net manual pages