2.17 creal, crealf—real part

Synopsis

     #include <complex.h>
     double creal(double complex z);
     float crealf(float complex z);
     

Description
These functions compute the real part of z.

crealf is identical to creal, except that it performs its calculations on floats complex.

Returns
The creal functions return the real part value.

Portability
creal and crealf are ISO C99