creal(3M) Mathematical Library Functions creal(3M)
NAME
creal, crealf, creall - complex real functions
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <complex.h>
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
DESCRIPTION
These functions compute the real part of z.
RETURN VALUES
These functions return the real part value.
ERRORS
No errors are defined.
USAGE
For a variable z of complex type:
z == creal(z) + cimag(z)*I
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
carg(3M), cimag(3M), complex.h(3HEAD), conj(3M), cproj(3M), attributes(5), standards(5)
SunOS 5.11 12 Jul 2006 creal(3M)
