COSH(3)

NAME
cosh - hyperbolic cosine function

SYNOPSIS
#include <math.h>
double
cosh(double x);
long double
coshl(long double x);
float
coshf(float x);

DESCRIPTION
The coshf() function computes the hyperbolic cosine of x.

SPECIAL VALUES
cosh(±0) returns 1.

cosh(±infinity) returns +infinity.

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 ISO/IEC 9899:1999(E).