1.\" $OpenBSD: sinh.3,v 1.15 2013/07/17 05:42:11 schwarze Exp $ 2.\" Copyright (c) 1991 The Regents of the University of California. 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. Neither the name of the University nor the names of its contributors 14.\" may be used to endorse or promote products derived from this software 15.\" without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 29.\" from: @(#)sinh.3 6.6 (Berkeley) 4/19/91 30.Dd $Mdocdate: July 17 2013 $ 31.Dt SINH 3 32.Os 33.Sh NAME 34.Nm sinh , 35.Nm sinhf , 36.Nm sinhl 37.Nd hyperbolic sine functions 38.Sh SYNOPSIS 39.In math.h 40.Ft double 41.Fn sinh "double x" 42.Ft float 43.Fn sinhf "float x" 44.Ft long double 45.Fn sinhl "long double x" 46.Sh DESCRIPTION 47The 48.Fn sinh 49function computes the hyperbolic sine of 50.Fa x . 51The 52.Fn sinhf 53function is a single precision version of 54.Fn sinh . 55The 56.Fn sinhl 57function is an extended precision version of 58.Fn sinh . 59.Sh RETURN VALUES 60The 61.Fn sinh , 62.Fn sinhf 63and 64.Fn sinhl 65functions return the hyperbolic sine value unless 66the magnitude 67of 68.Fa x 69is too large; in this event, the global variable 70.Va errno 71is set to 72.Er ERANGE . 73.Sh SEE ALSO 74.Xr acos 3 , 75.Xr asin 3 , 76.Xr atan 3 , 77.Xr atan2 3 , 78.Xr cos 3 , 79.Xr cosh 3 , 80.Xr sin 3 , 81.Xr tan 3 , 82.Xr tanh 3 83.Sh STANDARDS 84The 85.Fn sinh 86function conforms to 87.St -ansiC . 88.Sh HISTORY 89The 90.Fn sinh 91function first appeared in 92.At v7 . 93