function y = cosh(xin)
%COSH   Hyperbolic cosine.
%   COSH(X) is the hyperbolic cosine of the elements of X.

%   Copyright 1984-2000 The MathWorks, Inc. 
%   $Revision: 5.8 $  $Date: 2000/06/01 00:40:16 $
%   Built-in function.
