Ubuntu Manpages

cimag, cimagf, cimagl

get imaginary part of a complex number

#include <complex.h>

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

Link with -lm.

The cimag() function returns the imaginary part of the complex number z.

One has:

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

These functions first appeared in glibc in version 2.1.

see_pthreads(7))">

The cimag(), cimagf(), and cimagl() functions are thread-safe.

C99.

gcc also supports __imag__. That is a GNU extension.

cabs(3), creal(3), complex(7)

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