Plotting values without the zero values?

Hi i am trying to calculate the time for solving Ax=b and the time it takes depending on the size of n x n matrices. But when i am plotting the graf the zero values in the array is plotted in the figure which makes the figure look like diffrent stapels instead of a line. Any suggestions i am so stuck. Thank you!

t = zeros(1,500);

for n = 100:10:500

   A = rand(n,n);
      b = rand(n,1);
      tic;
      x = A\b;
      t(n) = toc;

end

plot(t)

Answer 1

[Walter Roberson]

I suggest that you use timeit().

Also in my experience the times can vary a fair bit, so I recommend using timeit in a loop to record multiple times at the same size