<TITLE>cosh</TITLE>
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<h3>COSH(3) Linux Programmer's Manual COSH(3)
</h3>
<h3>NAME
</h3> cosh - hyperbolic cosine function
<h3>SYNOPSIS
</h3> #include <math.h>
double cosh(double x);
<h3>DESCRIPTION
</h3> The cosh() function returns the hyperbolic cosine of x,
which is defined mathematically as exp(x) + exp(-x) / 2.
<h3>CONFORMING TO
</h3> SVID 3, POSIX, BSD 4.3, ISO 9899
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<h3>SEE ALSO
</h3><p>
<a href=acosh.htm>acosh</a>,
<a href=asinh.htm>asinh</a>,
<a href=atanh.htm>atanh</a>,
<a href=sinh.htm>sinh</a>,
<a href=tanh.htm>tanh</a>,
<pre>
June 13, 1993 1
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