<h1>Results</h1>

The created output is not very surprising. We simply see that the solution is
periodic with respect to the left and lower boundary:

<img src="http://www.dealii.org/images/steps/developer/step-45.periodic.png" alt="">

Without the periodicity constraints we would have ended up with the following solution:

<img src="http://www.dealii.org/images/steps/developer/step-45.non_periodic.png" alt="">
