creal man page on CentOS

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CREAL(3)		     complex math routines		      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).

NOTE
       The gcc supports also __real__. That is a GNU extension.

CONFORMING TO
       C99

SEE ALSO
       cabs(3), cimag(3), complex(7)

				  2002-07-28			      CREAL(3)
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