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Matlab Code:   clc; clear all; close all; %Circular Convolution by Matrix Method x=input('Enter the first sequence: '); h=input('Enter the second sequence: '); n=max(length(h),length(x)); A=0; %To obtain a circular matrix for i=1:n     if i==1         for j=1:n             A(i,j)=x(j); %first row stores all the elements of x(n)         end     else     for j=1:n         if(j==1)             A(i,j)=x(n-i+2); %first column of rows from i=2 to n are x(n),                                                                                x(n-i+2),...,x(3),x(2)         else             A(i,j)=A(i-1...