How to read a Matrix from the top left corner to the bottom right corner in a diagonal fashion

Given the matrix as shown I want to be able to read it diagonally putting the given numbers into a vector. For example, Read 1,2,5,3,6,3 etc converting this entire matrix into the vector 1,2,5,3,6,3,4,7,2,9,8,5,7,4,5,4. I want to write a code to be able to do that for a matrix of any size. I am assuming some type of loop but not 100% sure.

[James Tursa]

What have you done so far? What specific problems are you having with your code?

Answer 1

[Star Strider]

This works:

M = [1 2 3 4; 5 6 7 8; 3 2 5 4; 9 7 5 4];
Mf = flip(M,1);
ref = size(M,1);
for k1 = 1:2*ref-1
    dv = diag(Mf, k1-ref);
    V{k1} = flip(dv);
end
Out = cell2mat(V')