creall(category25-plesk.html) - phpMan

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)
VERSIONS
       These functions first appeared in glibc in version 2.1.
CONFORMING TO
       C99.
NOTES
       The gcc supports also __real__.  That is a GNU extension.
SEE ALSO
       cabs(3), cimag(3), complex(7)
COLOPHON
       This  page  is  part of release 3.53 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

                                  2008-08-11                          CREAL(3)