xref: /dragonfly/contrib/openbsd_libm/man/cimag.3 (revision 91dc43dd)
1.\"	$OpenBSD: cimag.3,v 1.3 2013/06/05 03:40:26 tedu Exp $
2.\"
3.\" Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
4.\"
5.\" Permission to use, copy, modify, and distribute this software for any
6.\" purpose with or without fee is hereby granted, provided that the above
7.\" copyright notice and this permission notice appear in all copies.
8.\"
9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16.\"
17.Dd $Mdocdate: June 5 2013 $
18.Dt CIMAG 3
19.Os
20.Sh NAME
21.Nm cimag ,
22.Nm cimagf ,
23.Nm cimagl
24.Nd compute the imaginary part of a complex number
25.Sh SYNOPSIS
26.In complex.h
27.Ft double
28.Fn cimag "double complex z"
29.Ft float
30.Fn cimagf "float complex z"
31.Ft long double
32.Fn cimagl "long double complex z"
33.Sh DESCRIPTION
34The
35.Fn cimag ,
36.Fn cimagf
37and
38.Fn cimagl
39functions compute the imaginary part of
40.Fa z .
41.Sh RETURN VALUES
42The
43.Fn cimag ,
44.Fn cimagf
45and
46.Fn cimagl
47functions return the imaginary part of the complex number
48.Fa z
49as a real number.
50.Sh SEE ALSO
51.Xr carg 3
52.Sh STANDARDS
53The
54.Fn cimag ,
55.Fn cimagf
56and
57.Fn cimagl
58functions conform to
59.St -isoC-99 .
60