1.\" $OpenBSD: sinh.3,v 1.6 2000/03/02 00:29:50 todd 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. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by the University of 16.\" California, Berkeley and its contributors. 17.\" 4. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" from: @(#)sinh.3 6.6 (Berkeley) 4/19/91 34.Dd April 19, 1991 35.Dt SINH 3 36.Os 37.Sh NAME 38.Nm sinh , 39.Nm sinhf 40.Nd hyperbolic sine functions 41.Sh SYNOPSIS 42.Fd #include <math.h> 43.Ft double 44.Fn sinh "double x" 45.Ft float 46.Fn sinhf "float x" 47.Sh DESCRIPTION 48The 49.Fn sinh 50function computes the hyperbolic sine of 51.Fa x . 52.Sh RETURN VALUES 53The 54.Fn sinh 55function returns the hyperbolic sine value unless 56the magnitude 57of 58.Fa x 59is too large; in this event, the global variable 60.Va errno 61is set to 62.Er ERANGE . 63.Sh SEE ALSO 64.Xr acos 3 , 65.Xr asin 3 , 66.Xr atan 3 , 67.Xr atan2 3 , 68.Xr cos 3 , 69.Xr cosh 3 , 70.Xr math 3 , 71.Xr sin 3 , 72.Xr tan 3 , 73.Xr tanh 3 74.Sh STANDARDS 75The 76.Fn sinh 77function conforms to 78.St -ansiC . 79