求matlab高手指正
syms t w A syms tao positive yt=heaviside(t+tao/2)-heaviside(t+tao/2) Yw=fourier(A*yt,t,w) yt3=subs(yt,tao,3) Yw3=subs(Yw,[A,tao],[1,3]) subplot(2,1,1) Ht=ezplot(yt3,[-3.3]); set(Ht,'Color','r','LineWidth',3) subplot(2,1,2),ezplot(Yw) 改程序运行后,显示错误: ??? Attempt to execute SCRIPT ezplot as a function: F:\MATLAB\toolbox\matlab\specgraph\ezplot.m 小弟继续此程序,跪求高手指点!