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+//Example 5.9

+clc;

+clear;

+close;

+

+//let

+x=[1 2 3 4];

+h=[5 6 7];

+M=length(x);

+N=length(h);

+

+//Result of linear convolution of original sequences

+y=conv(x,h);

+disp(y,"Result of linear convolution of original sequences is");

+

+L=M+N-1;

+//we append zeros such that total sequence will have length 6.

+x=[zeros(1:2),x];

+h=[h,zeros(1:2)];

+

+//Result of circular convolution of sequence appended with 2 zeros at start

+y=conv(x,h);

+y(11:12)=0;

+y=y(1:6)+y(7:12)

+disp(y,"Result of circular convolution of sequences appended with 2 zeros at start is");

+

+disp("We see that if we circularly rotate the result of circular convolution by 2 samples, we get the linear convolution result");