我自己写的小波变换

				function r=mldivide(a,b)				%MLDIVIDE Left Division for Rational Polynomial Objects. (MM)								% D.C. Hanselman, University of Maine, Orono ME 04469				% 3/27/98				% Mastering MATLAB 6, Prentice Hall, ISBN 0-13-019468-9								r=b./a; % simply call rdivide.m