% Proposed exercise, page 21, part 4 of the tutorial
clc
clear all
A = [0 0 0; 1 1 1; 1 2 0]
v1 = 1:3
v2 = 3:5
v3 = [-1 0 -1]
B = [v1; v2; v3]
C = A(1:2, [2, 3]) % or A(1:2, 2:3) or A([1 2], end-1:end)
B(1, :) = 1 % or B(1, :) = [1 1 1]
B(3, 2) = 5
D = B
D(2, :) = []
size(D)
E = D'