creal

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 double 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).

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

CONFORMING TO
       C99

SEE ALSO
       cabs(3), cimag(3), complex(5)



                                  2002-07-28                          CREAL(3)