x SuSE Linux 13.1-RELEASE x x SuSE Linux 13.1-RELEASEx creal(3) Library Functions Manual creal(3) NAME creal, crealf, creall - get real part of a complex number LIBRARY Math library (libm, -lm) SYNOPSIS #include <complex.h> double creal(double complex z); float crealf(float complex z); long double creall(long double complex z); DESCRIPTION These functions return the real part of the complex number z. One has: z = creal(z) + I * cimag(z) ATTRIBUTES For an explanation of the terms used in this section, see at- tributes(7). +--------------------------------------------+---------------+---------+ |Interface | Attribute | Value | +--------------------------------------------+---------------+---------+ |creal(), crealf(), creall() | Thread safety | MT-Safe | +--------------------------------------------+---------------+---------+ VERSIONS GCC supports also __real__. That is a GNU extension. STANDARDS C11, POSIX.1-2008. HISTORY glibc 2.1. C99, POSIX.1-2001. SEE ALSO cabs(3), cimag(3), complex(7) Linux man-pages 6.04 2023-03-30 creal(3)
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