I always intend to update my web site regularly but never seem to get around to actually doing it. I have even less excuse than usual at the moment as I have only being working part time for the last two years. I have been continuing to develop Spirofractal, and it is slowly getting nearer to the next release, but I have been frequently side-tracked. For example I spent 18 months developing some software that uses Finite State Automata to find represenations of groups. I needed this as part of Spirofractal development but it became a major project in its own right. That means I intend to release a software package called MAF, which will be open source. Recently I have also spent several months trying to understand Kleinian groups better. You can find several examples of limit sets of such groups in the updated fractal gallery.
I also started to develop a book-like website called the Atlas of Symmetry. Unfortunately I have not yet made much progress on this, though I shall soon start posting bits of it onto this site.
When I first developed this site I was enthusiastic about Internet Explorer, which was then the latest and greatest browser, and had lots of exciting features that allowed me to have things like the bicycle that used to move around the edge of my About me page, and filters on images. Internet Explorer is now a nightmare for web developers. I recently spent three hours trying to find a way to get it to do something as simple as render a background image on a table properly. I won't be developing any more IE specific functionality. Each new version of IE, and each security fix released by Microsoft has a tendency to break pages. So, the bicycle has been removed, simply because it has stopped working for reasons that are a mystery to me, and that will be the fate of more and more of the IE specific features on this site.