a Find the output by direct convolution Note that this shoul

a) Find the output by direct convolution. Note that this should require very little computation.

b) Find the output using the z domain.

c) Show that the results of a) and b) are the same.

close all;

clear all;

clc;

n=0:0.01:5;

h=(n-2)*(1/3)^n*u(n-2);

y=1;

z=conv(x,y);

subplot(3,1,1);

plot(t,x);

xlabel(\'time\');

ylabel(\'amplitude\');

title(\'time signal-1\');

subplot(3,1,2);

plot(t,y);

xlabel(\'time\');

ylabel(\'amplitude\');

title(\'time signal-2\');

subplot(\'3,1,3\');

plot(z);

xlabel(\'time\');

ylabel(\'amplitude\');

title(\'convoluted signal\');