function A = warmUpExercise()

% Instructions: Return the 5x5 identity matrix
%               In octave, we return values by defining which variables
%               represent the return values (at the top of the file)
%               and then set them accordingly.
  A = zeros(5, 5);
  for i=1:5
    A(i, i) = 1;
  end

% ===========================================


end