cosh

COSH(3)                    Linux Programmer's Manual                   COSH(3)



NAME
       cosh - hyperbolic cosine function

SYNOPSIS
       #include <math.h>

       double cosh(double x);

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

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899 (C99)

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



                                  1993-06-13                           COSH(3)