COSH
Section: Linux Programmer's Manual (3)
Updated: June 13, 1993
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
SEE ALSO
acosh(3), asinh(3), atanh(3), sinh(3), tanh(3)