runs = 5;

cumulate = 0; b = 0;
for i = 1:runs
  b = zeros (620, 620);
  tic;
    for j = 1:620
      for k = 1:620
        b(k,j) = abs (13);
      end
    end
  timing = toc;
  cumulate = cumulate + timing;
end

## Total time
cumulate
