Why you should contribute
If you read this wiki you should contribute. Basically, we need readers to make contributions for this wiki to really work. No matter how little you know about the mathematical theory you will find typos and small errors on pages as you read them. If you start to work through the mathematics you will find errors in the equations, gaps in the derivations or points which confuse you and where you had to think hard to make progress.
Unfortunately, we have had a lot of problems with spam and we have had to require users to be authenticated. It is very annoying, but there is not much that can be done about this problem.
We do notice every edit and it makes us feel great that you have made this contribution. The site is about giving to others but we do like feedback.