HP 3000 Manuals

HP C/iX Library Reference Manual

cosh 

Computes the hyperbolic cosine of an angle.

Syntax 

     #include <math.h>
     double cosh (double x);

Parameters 

x             A real number giving the angle measured in radians.

Return Values 

HUGE_VAL      An overflow condition occurred, and errno is set to ERANGE.

n             The hyperbolic cosine of the given angle.

Description 

The cosh function returns the hyperbolic cosine of the given angle.
Error handling can be changed by a user-written matherr function.

See Also 

tanh(), cos(), matherr(), ANSI C 4.5.3.1, POSIX.1 8.1

MPE/iX 5.0 Documentation