Linux manual pages Section 3: Subroutines  

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);
 
[Note] Note

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.

ATTRIBUTES

Multithreading (see pthreads(7))

The cimag(), cimagf(), and cimagl() functions are thread-safe.

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 3.52 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/.


  Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)

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