Let B element Rm times n and C element R5 times 3 be matrice

Let B element R^m times n and C element R^5 times 3 be matrices which have already been generated in the Command Window. Use two MATLAB statements in each part, the first generates the new matrix, and the second modifies it. Don\'t include the output. Let E_1 be the same as B, but b_2, 3 is replaced by 999. Let E_2 be the same as B but its third row is replaced by (2, 3, 4, 5, ....) Let E_3 be the same as B but the 2^nd through the 6^th rows and the 3^rd, 4^th, and 9^th columns are replaced by C. Let E_4 be the same as B but its 3^rd and 4^th columns are reversed. Let E_5 be the same as B but all its columns are moved one to the right, except the last one which is moved to the first. That is, E = (b_n, b_1, b_2, ..., b_n - 1). Let E_6 be the same as B except that the first column is deleted. That is, E = (b_2, b_3, ..., b_n).

Solution

clc;
clear all;
% Given That
m=20;
n=20;
B=rand(m,n);
C=ones(5,3);
%% Part a
E1=B;
E1(2,3)=999;
%% Part b
E2=B;
E2(3,:)=2:(size(E1,2)+1);
%% Part c
E3=B;
E3(2:6,[3 4 9])=C;
%% Part d
E4=B;
E4(:,3:4)=flipud(E4(:,3:4));
%% Part e
E5=B;
E5=circshift(E5, [0 1]);
%% Part f
E6=B;
E6=E6(:,2:end);