%ACOS   Inverse cosine.
%   ACOS(X) is the arccosine of the elements of X. Complex
%   results are obtained if ABS(x) > 1.0 for some element.

%   Copyright 1984-2000 The MathWorks, Inc. 
%   $Revision: 5.5 $  $Date: 2000/06/01 00:40:13 $
%   Built-in function.
