creal (3) - Linux Man Pages
creal: get real part of a complex number
creal, crealf, creall - get real part of a complex number
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
DESCRIPTIONThese functions return the real part of the complex number z.
z = creal(z) + I * cimag(z)
VERSIONSThese functions first appeared in glibc in version 2.1.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
|creal(), crealf(), creall()||Thread safety||MT-Safe|
CONFORMING TOC99, POSIX.1-2001, POSIX.1-2008.
NOTESThe gcc supports also __real__. That is a GNU extension.
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