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creall (3)
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
The creal() function returns the real part of the complex number z.
One has z = creal(z) + I * cimag(z).
CONFORMING TO
C99
NOTES
The gcc supports also __real__. That is a GNU extension.
SEE ALSO
cabs(3), cimag(3), complex(7)
2002-07-28 CREAL(3)
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