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creal(3) [v7 man page]

CREAL(3)						     Linux Programmer's Manual							  CREAL(3)

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
These functions return the real 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 | +----------------------------+---------------+---------+ |creal(), crealf(), creall() | Thread safety | MT-Safe | +----------------------------+---------------+---------+ CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008. NOTES
The gcc supports also __real__. That is a GNU extension. SEE ALSO
cabs(3), cimag(3), complex(7) 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 CREAL(3)

Check Out this Related Man Page

CREAL(3)						     Linux Programmer's Manual							  CREAL(3)

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
These functions return the real 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 | +----------------------------+---------------+---------+ |creal(), crealf(), creall() | Thread safety | MT-Safe | +----------------------------+---------------+---------+ CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008. NOTES
The gcc supports also __real__. That is a GNU extension. SEE ALSO
cabs(3), cimag(3), complex(7) 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 CREAL(3)
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