We previously assessed the model, and the method is entirely straightforward. We also made an important improvement in the implementation as we went along, converting it into a stable computation.
The most important problem remaining with the solution is that we don't really know if any of the digits of the answer are significant. We can resolve this question, of course, by doing an interval analysis. We will leave this task, along with the job of answering a number of other questions that we have raised as we have gone along, to you.