cimag(3) — get imaginary part of a complex number

cimag(3)

Library Functions Manual

cimag(3)

NAME

cimag, cimagf, cimagl - get imaginary part of a complex number

Math library (libm, -lm)

#include <complex.h>

double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);

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

One has:

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

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

Interface	Attribute	Value
cimag (), cimagf (), cimagl ()	Thread safety	MT-Safe

GCC also supports __imag__. That is a GNU extension.

C11, POSIX.1-2008.

glibc 2.1. C99, POSIX.1-2001.