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COSH(3)                     BSD Programmer's Manual                    COSH(3)

NAME
     cosh - hyperbolic cosine function

SYNOPSIS
     #include <&lt;math.h>&gt;

     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 C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1