%CD     Change current working directory.
%   CD directory-spec sets the current directory to the one specified.
%   CD .. moves to the directory above the current one.
%   CD, by itself, prints out the current directory.
%
%   WD = CD returns the current directory as a string.
%
%   Use the functional form of CD, such as CD('directory-spec'),
%   when the directory specification is stored in a string.
%
%   See also PWD.

%   Copyright (c) 1984-98 by The MathWorks, Inc.
%   $Revision: 5.5 $  $Date: 1997/11/21 23:31:23 $
%   Built-in function.
