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3. Library calls (functions within program libraries)

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CIMAG

Section: Linux Programmer's Manual (3)
Updated: 2015-04-19
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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

These functions return 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

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
cimag(), cimagf(), cimagl() Thread safetyMT-Safe
 

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.  

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 5.10 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
VERSIONS
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

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