Scroll to navigation

cimag(3) Library Functions Manual cimag(3)

NAME

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

LIBRARY

Math library (libm, -lm)

SYNOPSIS

#include <complex.h>
double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);

DESCRIPTION

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

One has:


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

VERSIONS

These functions were added in glibc 2.1.

ATTRIBUTES

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

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

STANDARDS

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

NOTES

gcc also supports __imag__. That is a GNU extension.

SEE ALSO

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

2022-12-15 Linux man-pages 6.03