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CIMAG(3) | Linux Programmer's Manual | CIMAG(3) |
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).
Interface | Attribute | Value |
cimag (), cimagf (), cimagl () | Thread safety | MT-Safe |
CONFORMING TO¶
C99, POSIX.1-2001, POSIX.1-2008.
NOTES¶
gcc also supports __imag__. That is a GNU extension.
SEE ALSO¶
COLOPHON¶
This page is part of release 4.15 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/.
2015-04-19 |