creal (3)
NAME
creal, crealf, creall - get real part of a complex numberSYNOPSIS
#include <complex.h>
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
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/.