| .\" Copyright (c) 1989, 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 |

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| .\" 3. All advertising materials mentioning features or use of this software |

| .\" must display the following acknowledgement: |

| .\" This product includes software developed by the University of |

| .\" California, Berkeley and its contributors. |

| .\" 4. Neither the name of the University nor the names of its contributors |

| .\" may be used to endorse or promote products derived from this software |

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| .\" |

| .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |

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| .\" from: @(#)cosh.3 5.1 (Berkeley) 5/2/91 |

| .\" $FreeBSD: src/lib/msun/man/cosh.3,v 1.12 2005/01/14 23:28:28 das Exp $ |

| .\" |

| .Dd January 14, 2005 |

| .Dt COSH 3 |

| .Os |

| .Sh NAME |

| .Nm cosh , |

| .Nm coshf |

| .Nd hyperbolic cosine functions |

| .Sh LIBRARY |

| .Lb libm |

| .Sh SYNOPSIS |

| .In math.h |

| .Ft double |

| .Fn cosh "double x" |

| .Ft float |

| .Fn coshf "float x" |

| .Sh DESCRIPTION |

| The |

| .Fn cosh |

| and the |

| .Fn coshf |

| functions compute the hyperbolic cosine of |

| .Fa x . |

| .Sh SEE ALSO |

| .Xr acos 3 , |

| .Xr asin 3 , |

| .Xr atan 3 , |

| .Xr atan2 3 , |

| .Xr cos 3 , |

| .Xr math 3 , |

| .Xr sin 3 , |

| .Xr sinh 3 , |

| .Xr tan 3 , |

| .Xr tanh 3 |

| .Sh STANDARDS |

| The |

| .Fn cosh |

| function conforms to |

| .St -isoC . |