xref: /openbsd-src/lib/libm/man/sin.3 (revision 5ab595d88fe38b6e142ed3cef49bc7fd9db00796)

.\"	$OpenBSD: sin.3,v 1.17 2017/09/27 06:41:53 jmc Exp $
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.\"     from: @(#)cos.3	5.1 (Berkeley) 5/2/91
.\"
.Dd $Mdocdate: September 27 2017 $
.Dt SIN 3
.Os
.Sh NAME
.Nm sin ,
.Nm sinf ,
.Nm sinl
.Nd sine functions
.Sh SYNOPSIS
.In math.h
.Ft double
.Fn sin "double x"
.Ft float
.Fn sinf "float x"
.Ft long double
.Fn sinl "long double x"
.Sh DESCRIPTION
The
.Fn sin
function computes the sine of
.Fa x
(measured in radians).
The
.Fn sinf
function is a single precision version of
.Fn sin .
The
.Fn sinl
function is an extended precision version of
.Fn sin .
A large magnitude argument may yield a result with little or no
significance.
.Sh RETURN VALUES
The
.Fn sin ,
.Fn sinf
and
.Fn sinl
functions return the sine value.
.Sh SEE ALSO
.Xr acos 3 ,
.Xr asin 3 ,
.Xr atan 3 ,
.Xr atan2 3 ,
.Xr cos 3 ,
.Xr cosh 3 ,
.Xr sinh 3 ,
.Xr tan 3 ,
.Xr tanh 3
.Sh STANDARDS
The
.Fn sin
function conforms to
.St -ansiC .
.Sh HISTORY
A
.Fn sin
function first appeared in
.At v1 .