.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
.\" Distributed under GPL
.\"
.TH CIMAG 3 200&-12-23 "" "Linux Programmer's Manual"
.SH NAME
cimag, cimagf, cimagl \- get imaginary part of a complex number
.SH SYNOPSIS
.B #include <complex.h>
.sp
.BI "double cimag(double complex " z ");"
.br
.BI "float cimagf(float complex " z ");"
.br
.BI "long double cimagl(long double complex " z ");"
.sp
Link with \fI\-lm\fP.
.SH DESCRIPTION
The
.BR cimag ()
function returns the imaginary part of the complex number
.IR z .
.LP
One has:
.nf

    z = creal(z) + I * cimag(z)
.nf
.SH "CONFORMING TO"
C99
.SH NOTES
gcc also supports __imag__.
That is a GNU extension.
.SH "SEE ALSO"
.BR cabs (3),
.BR creal (3),
.BR complex (7)