Hi! I'm too sleepy to think about the math you're explaining right now. I just wanted to say:

I've added a [page about you](http://www.azimuthproject.org/azimuth/show/Andrew+Ardill) on the Azimuth Wiki, based on yours here. You can edit it as you want.

Now, if you edit an Azimuth Wiki page and sign in using the name Andrew Ardill, a link to [your page](http://www.azimuthproject.org/azimuth/show/Andrew+Ardill) will become visible on that page. We do this to make it easy for people to learn about the people who are editing this wiki.