COSH(3) BSD Library Functions Manual COSH(3)NAME
cosh — hyperbolic cosine function
SYNOPSIS
#include <math.h>
double
cosh(double x);
DESCRIPTION
The cosh() function computes the hyperbolic cosine of x.
RETURN VALUES
The cosh() function returns the hyperbolic cosine unless the magnitude of
x is too large; in this event, the global variable errno is set to
ERANGE.
SEE ALSOacos(3), asin(3), atan(3), atan2(3), cos(3), sin(3), sinh(3), tan(3),
tanh(3), math(3),
STANDARDS
The cosh() function conforms to ANSI X3.159-1989 (“ANSI C89”).
BSD June 4, 1993 BSD