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.\" $OpenBSD: carg.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 CARG 3
.Os
.Sh NAME
.Nm carg ,
.Nm cargf ,
.Nm cargl
.Nd complex argument functions
.Sh SYNOPSIS
.In complex.h
.Ft double
.Fn carg "double complex z"
.Ft float
.Fn cargf "float complex z"
.Ft long double
.Fn cargl "long double complex z"
.Sh DESCRIPTION
The
.Fn carg ,
.Fn cargf
and
.Fn cargl
functions compute the argument (also called phase angle) of
.Fa z ,
with a branch cut on the negative real axis.
.Sh RETURN VALUES
The
.Fn carg ,
.Fn cargf
and
.Fn cargl
functions return the argument in the interval
.Bq -Pi, Pi .
.Sh SEE ALSO
.Xr cimag 3
.Sh STANDARDS
The
.Fn carg ,
.Fn cargf
and
.Fn cargl
functions conform to
.St -isoC-99 .
|
