Provided by: manpages-dev_3.54-1ubuntu1_all
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
The creal() function returns 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.
CONFORMING TO
C99.
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 3.54 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/. 2008-08-11 CREAL(3)