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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)

Attributes

For an explanation of the terms used in this section, see attributes(7). allbox; lbx lb lb T{ cimag()cimagf()cimagl()
InterfaceAttributeValue
T}Thread safetyMT-Safe

Versions

GCC also supports __imag__. That is a GNU extension.

Standards

C11, POSIX.1-2008.

History

glibc 2.1. C99, POSIX.1-2001.

See Also

  1. cabs(3),
  2. creal(3),
  3. complex(7)