CIMAG

Section: Linux Programmer's Manual (3)
Updated: 2008-08-11
Index Return to Main Contents
 

NAME

cimag, cimagf, cimagl - get imaginary part of a complex number  

SYNOPSIS

#include <complex.h>

double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);

Link with -lm.  

DESCRIPTION

The cimag() function returns the imaginary part of the complex number z.

One has: 


    z = creal(z) + I * cimag(z)
 

VERSIONS

These functions first appeared in glibc in version 2.1.  

CONFORMING TO

C99.  

NOTES

gcc also supports __imag__. That is a GNU extension.  

SEE ALSO

cabs(3), creal(3), complex(7)  

COLOPHON

This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.