MATLAB: How to save matrix created in each iteration

Question

n=1;
while n<4
    k=[1 2 3 4;5 6 7 8];
    k=k*n;
    n=n+1;
    display(n)
    display(k)
end

Answer 1

One of ways

n=1;
k=[1 2 3 4;5 6 7 8];
out = zeros([size(k),3]);
while n<4
    k=k*n;
    out(:,:,n) = k;
    n=n+1;
end