%MFILENAME The name of the currently running M-file.
%	MFILENAME returns a string containing the name of the most
%	recently invoked M-file. When called from within an M-file, it
%	returns the name of that M-file, allowing an M-file to 
%	determine its name, even if the filename has been changed.
%
%	When called from the command line, MFILENAME returns 
%	an empty matrix.

%	Copyright (c) 1990-94 by The MathWorks, Inc.

%	Built-in function
