% First ,define the vector A as a row vector beginning with the number 1,
% and increasing by increments of 1 until 18.
A = [1:1:18]
% Next, use the reshape function to turn the vector into a 3 x 6 matrix
B = reshape(A, 3, 6)
% Finally, we create a nine-element column vector that contains the
% elements of the first, third and fifth columns of B
Ba = [B(:,1); B(:,3); B(:,5)]
A =
Columns 1 through 13
1
2
3
4
5
6
Columns 14 through 18
14
15
16
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B =
Ba =
1
2
3
7
8
9
13
14
15
Published with MATLAB® R2014a
1
16
17
18
7
8
9
10
11
12