//Example 4.13 //Convolution sum of x[n] and h[n] clc clear n=0:100; n1=0:200; for i=1:length(n) x(i)=n(i); h(i)=1; end y=convol(x,h); disp(y) subplot(3,1,1) xtitle("input signal x(n)","....................n","x[n]"); plot(n,x,'.'); subplot(3,1,2) xtitle("system response h(n)","....................n","h[n]"); plot(n,h,'.'); subplot(3,1,3) xtitle("output signal y(n)",".............................n","y[n]"); plot(n1,y,'.');