xref: /freebsd/lib/msun/man/cosh.3 (revision 64890443c1b144b289df30a5123d179955bc8c92)

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.\"     from: @(#)cosh.3	5.1 (Berkeley) 5/2/91
.\" $FreeBSD$
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.Dd May 2, 1991
.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 RETURN VALUES
The
.Fn cosh
and the
.Fn coshf
functions return the hyperbolic cosine unless the magnitude
of
.Fa x
is too large; in this event, the global variable
.Va errno
is set to
.Er ERANGE .
.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 .