  function C = matrixProdukt(A,B);
  C = zeros(size(A,1), size(B,2));
  for i = 1 : size(A,1)
    for j = 1 : size(B,2)
      for k = 1 : size(A,2)
        C(i,j) = C(i,j) + A(i,k) * B(k,j)
      end
    end
  end