This loop:
for m = 1:16
n = 1+mod(m-1,4);
disp([m,n])
end
displays the variables m and n in the command window:
1 1
2 2
3 3
4 4
5 1
6 2
7 3
8 4
9 1
10 2
11 3
12 4
13 1
14 2
15 3
16 4
