Manpages - creal.3

creal, crealf, creall - get real part of a complex number

  #include <complex.h>

  double creal(double complex z);
  float crealf(float complex z);
  long double creall(long double complex z);

  Link with -lm.

These functions return the real part of the complex number z.

One has:

      z = creal(z) + I * cimag(z)

These functions first appeared in glibc in version 2.1.

For an explanation of the terms used in this section, see *attributes*(7).

C99, POSIX.1-2001, POSIX.1-2008.

The gcc supports also real. That is a GNU extension.

*cabs*(3), *cimag*(3), *complex*(7)

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