c clear. close a a=[1,2,8]b=1; dt=0.1 t=0: dt 5 X=38t+tcOS(0.1*t); r,p=residue(b, a); h=r(1)*exp(p(1)*t)+r(2)*exp(pP(2)*t) subplot(2, 1, 1),plot(t, h); grid y=conv(x, h)*dt subplot(2, 1, 2),plot(t y(:length (t)); grid• Clc,clear,close all • a=[1,2,8];b=1; • dt=0.1 • t=0:dt:5; • x=3*t+cos(0.1*t); • [r,p]=residue(b,a); • h=r(1)*exp(p(1)*t)+r(2)*exp(p(2)*t); • subplot(2,1,1),plot(t,h);grid • y=conv(x,h)*dt; • subplot(2,1,2),plot(t,y(1:length(t)));grid