mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
86 lines
2.4 KiB
Groff
86 lines
2.4 KiB
Groff
|
.\" Copyright (c) 1991 The Regents of the University of California.
|
||
|
|
.\" All rights reserved.
|
||
|
|
.\"
|
||
|
|
.\" Redistribution and use in source and binary forms, with or without
|
||
|
|
.\" modification, are permitted provided that the following conditions
|
||
|
|
.\" are met:
|
||
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
||
|
|
.\" notice, this list of conditions and the following disclaimer.
|
||
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
||
|
|
.\" documentation and/or other materials provided with the distribution.
|
||
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
||
|
|
.\" may be used to endorse or promote products derived from this software
|
||
|
|
.\" without specific prior written permission.
|
||
|
|
.\"
|
||
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
.\" SUCH DAMAGE.
|
||
|
|
.\"
|
||
|
|
.\" from: @(#)asin.3 5.1 (Berkeley) 5/2/91
|
||
|
|
.\" $NetBSD: asin.3,v 1.16 2003/08/07 16:44:46 agc Exp $
|
||
|
|
.\"
|
||
|
|
.Dd May 2, 1991
|
||
|
|
.Dt ASIN 3
|
||
|
|
.Os
|
||
|
|
.Sh NAME
|
||
|
|
.Nm asin ,
|
||
|
|
.Nm asinf
|
||
|
|
.Nd arc sine function
|
||
|
|
.Sh LIBRARY
|
||
|
|
.Lb libm
|
||
|
|
.Sh SYNOPSIS
|
||
|
|
.In math.h
|
||
|
|
.Ft double
|
||
|
|
.Fn asin "double x"
|
||
|
|
.Ft float
|
||
|
|
.Fn asinf "float x"
|
||
|
|
.Sh DESCRIPTION
|
||
|
|
The
|
||
|
|
.Fn asin
|
||
|
|
and
|
||
|
|
.Fn asinf
|
||
|
|
functions compute the principal value of the arc sine of
|
||
|
|
.Fa x
|
||
|
|
in the range
|
||
|
|
.Bk -words
|
||
|
|
.Bq -\*(Pi/2, +\*(Pi/2 .
|
||
|
|
.Ek
|
||
|
|
.Sh RETURN VALUES
|
||
|
|
.\" POSIX_MODE
|
||
|
|
If |x|\*[Gt]1,
|
||
|
|
.Fn asin "x"
|
||
|
|
and
|
||
|
|
.Fn asinf "x"
|
||
|
|
return NaN and set the global variable
|
||
|
|
.Va errno
|
||
|
|
to EDOM.
|
||
|
|
.\" SYSV_MODE
|
||
|
|
.\" call
|
||
|
|
.\" .Xr matherr 3 .
|
||
|
|
.Sh SEE ALSO
|
||
|
|
.Xr acos 3 ,
|
||
|
|
.Xr atan 3 ,
|
||
|
|
.Xr atan2 3 ,
|
||
|
|
.Xr cos 3 ,
|
||
|
|
.Xr cosh 3 ,
|
||
|
|
.Xr math 3 ,
|
||
|
|
.Xr sin 3 ,
|
||
|
|
.Xr sinh 3 ,
|
||
|
|
.Xr tan 3 ,
|
||
|
|
.Xr tanh 3
|
||
|
|
.\" .Xr matherr 3
|
||
|
|
.Sh STANDARDS
|
||
|
|
The
|
||
|
|
.Fn asin
|
||
|
|
function conforms to
|
||
|
|
.St -ansiC .
|