NAME    [Toc]    [Back]

       cosh - hyperbolic cosine function

SYNOPSIS    [Toc]    [Back]

       #include <math.h>

       double cosh(double x);

DESCRIPTION    [Toc]    [Back]

       The  cosh()  function  returns  the  hyperbolic	cosine	of x, which is
       defined mathematically as (exp(x) + exp(-x)) / 2.

CONFORMING TO    [Toc]    [Back]

       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO    [Toc]    [Back]

       acosh(3), asinh(3), atanh(3), sinh(3), tanh(3)



				  1993-06-13			       COSH(3)