exm053_9.m

matlab的初级教程

%exm053_9.m

clear
syms tao;
t=sym('t','positive');						%把t定义为限定性符号变量
ut=sym('Heaviside(t)-Heaviside(t-1)');ht=t*exp(-t);
yt53=int(subs(ut,t,tao)*subs(ht,t,t-tao),tao,0,t);
yt53=collect(yt53,'Heaviside(t-1)')	%进行同类项归并