%NARGIN Number of function input arguments.
%   Inside the body of a user-defined function, NARGIN returns
%   the number of input arguments that were used to call the
%   function. 
%
%   NARGIN('fun') returns the number of declared inputs for the
%   M-file function 'fun'.  The number of arguments is negative if the
%   function has a variable number of input arguments.
%
%   See also NARGOUT, VARARGIN, INPUTNAME, MFILENAME.

%   Copyright 1984-2000 The MathWorks, Inc. 
%   $Revision: 5.13 $  $Date: 2000/06/01 04:26:39 $
%   Built-in function.
