67 lines
1.6 KiB
Groff
67 lines
1.6 KiB
Groff
.\" $OpenBSD: ccos.3,v 1.2 2013/06/05 03:40:26 tedu Exp $
|
|
.\"
|
|
.\" Copyright (c) 2011 Martynas Venckus <martynas@openbsd.org>
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this software for any
|
|
.\" purpose with or without fee is hereby granted, provided that the above
|
|
.\" copyright notice and this permission notice appear in all copies.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
.\"
|
|
.Dd $Mdocdate: June 5 2013 $
|
|
.Dt CCOS 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ccos ,
|
|
.Nm ccosf ,
|
|
.Nm ccosl
|
|
.Nd complex circular cosine
|
|
.Sh SYNOPSIS
|
|
.In complex.h
|
|
.Ft double complex
|
|
.Fn ccos "double complex z"
|
|
.Ft float complex
|
|
.Fn ccosf "float complex z"
|
|
.Ft long double complex
|
|
.Fn ccosl "long double complex z"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn ccos ,
|
|
.Fn ccosf
|
|
and
|
|
.Fn ccosl
|
|
functions compute the complex circular cosine of
|
|
.Fa z .
|
|
.Pp
|
|
If
|
|
.Fa z
|
|
= x + iy, then
|
|
.Bd -literal -offset indent
|
|
ccos(z) = cos(x) cosh(y) - i sin(x) sinh(y).
|
|
.Ed
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn ccos ,
|
|
.Fn ccosf
|
|
and
|
|
.Fn ccosl
|
|
functions return the complex circular cosine of
|
|
.Fa z .
|
|
.Sh SEE ALSO
|
|
.Xr csin 3 ,
|
|
.Xr ctan 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn ccos ,
|
|
.Fn ccosf
|
|
and
|
|
.Fn ccosl
|
|
functions conform to
|
|
.St -isoC-99 .
|