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clear all;i=-5:5;a=[zeros(1,5),1,zeros(1,5)]%zero padding for delta fnsubplot(2,2,1)stem(i,a,'k');title('Delta fn');j=0:0.01:1;b=cos(2*pi*3*j)%cosine Plotsubplot(2,2,2);stem(j,b,'k');title('Cosine fn');i=-5:5c=[zeros(1,5),ones(1,6)] %padding for impulse functionsubplot(2,2,3)stem(i,c,'k');title('Unit Impulse fn');i=0:0.5:5;y=i;subplot(2,2,4)stem(i,y,'k');%Ramp fntitle('Ramp fn');jihmsp