CREAL, CREALF, CREALL - reference manual online

Get real part of a complex number.

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 4.04 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
2015-04-19 CREAL(3)
This manual Reference Other manuals
creal(3) referred by cimag(3) | complex(7)
refer to attributes(7) | cabs(3) | cimag(3) | complex(7)