2004-11-03 13:51:07 +00:00
|
|
|
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
|
|
|
|
|
.\" Distributed under GPL
|
|
|
|
|
.\"
|
2007-05-18 08:43:42 +00:00
|
|
|
.TH CIMAG 3 2002-07-28 "" "Linux Programmer's Manual"
|
2004-11-03 13:51:07 +00:00
|
|
|
.SH NAME
|
|
|
|
|
cimag, cimagf, cimagl \- get imaginary part of a complex number
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.B #include <complex.h>
|
|
|
|
|
.sp
|
2007-04-12 22:42:49 +00:00
|
|
|
.BI "double cimag(double complex " z ");"
|
2004-11-11 17:28:42 +00:00
|
|
|
.br
|
2004-11-03 13:51:07 +00:00
|
|
|
.BI "float cimagf(float complex " z ");"
|
2004-11-11 17:28:42 +00:00
|
|
|
.br
|
2004-11-03 13:51:07 +00:00
|
|
|
.BI "long double cimagl(long double complex " z ");"
|
|
|
|
|
.sp
|
|
|
|
|
Link with \-lm.
|
|
|
|
|
.SH DESCRIPTION
|
2007-04-12 22:42:49 +00:00
|
|
|
The
|
2005-10-19 14:48:35 +00:00
|
|
|
.BR cimag ()
|
|
|
|
|
function returns the imaginary part of the complex number z.
|
2004-11-03 13:51:07 +00:00
|
|
|
.LP
|
2007-05-01 08:15:41 +00:00
|
|
|
One has z = creal(z) + I * cimag(z).
|
2007-05-19 04:30:20 +00:00
|
|
|
.SH "CONFORMING TO"
|
|
|
|
|
C99
|
2007-05-16 02:54:18 +00:00
|
|
|
.SH NOTES
|
|
|
|
|
gcc also supports __imag__.
|
|
|
|
|
That is a GNU extension.
|
2004-11-03 13:51:07 +00:00
|
|
|
.SH "SEE ALSO"
|
|
|
|
|
.BR cabs (3),
|
|
|
|
|
.BR creal (3),
|
2006-04-21 01:24:06 +00:00
|
|
|
.BR complex (7)
|
