Reshaping matrix

Hi...

I want to ask how to reshape this matrix

A = [ 1 1 1 ; 2 2 2 ; 3 3 3] to be A = [1 1 1 2 2 2 3 3 3]

using index, because I will use around 40 x 40 matrix

Thank you, Muammar

Answer 1

[Andrei Bobrov]

out = reshape(A.',1,[])

please read reshape