How to create a smaller matrix from a larger one?

So if I were to have a matrix M

M = [ 0 4 5 6
      3 9 1 4];

And I wanted to create a smaller Matrix Z from M

Z = [ 5
      1]

What would be the easiest/fastest way to do this?

Answer 1

[KSSV]

Z = M(:,3) ;   % Z happens to be a third column in M

Read about matrix indexing.

https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html