COSH(3) MachTen Programmer’s 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 ALSO
acos(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 C3.159-1989 (‘‘ANSI C’’).

4.4BSD June 4, 1993 1