1*61285Sbostic.\" Copyright (c) 1989, 1991, 1993 2*61285Sbostic.\" The Regents of the University of California. All rights reserved. 348921Scael.\" 448921Scael.\" %sccs.include.redist.man% 548921Scael.\" 6*61285Sbostic.\" @(#)cosh.3 8.1 (Berkeley) 06/04/93 748921Scael.\" 848921Scael.Dd 948921Scael.Dt COSH 3 1048921Scael.Os 1148921Scael.Sh NAME 1248921Scael.Nm cosh 1348921Scael.Nd hyperbolic cosine function 1448921Scael.Sh SYNOPSIS 1548921Scael.Fd #include <math.h> 1648921Scael.Ft double 1748921Scael.Fn cosh "double x" 1848921Scael.Sh DESCRIPTION 1948921ScaelThe 2048921Scael.Fn cosh 2148921Scaelfunction computes the hyperbolic cosine of 2248921Scael.Fa x . 2348921Scael.Sh RETURN VALUES 2448921ScaelThe 2548921Scael.Fn cosh 2648921Scaelfunction returns the hyperbolic cosine unless the magnitude 2748921Scaelof 2848921Scael.Fa x 2948921Scaelis too large; in this event, the global variable 3048921Scael.Va errno 3148921Scaelis set to 3248921Scael.Er ERANGE . 3348921Scael.Sh SEE ALSO 3448921Scael.Xr acos 3 , 3548921Scael.Xr asin 3 , 3648921Scael.Xr atan 3 , 3748921Scael.Xr atan2 3 , 3848921Scael.Xr cos 3 , 3948921Scael.Xr sin 3 , 4048921Scael.Xr sinh 3 , 4148921Scael.Xr tan 3 , 4248921Scael.Xr tanh 3 , 4348921Scael.Xr math 3 , 4448921Scael.Sh STANDARDS 4548921ScaelThe 4648921Scael.Fn cosh 4748921Scaelfunction conforms to 4848921Scael.St -ansiC . 49