Bill, the first part deserves some editing and explanation. Another caveat about the complexity stuff is that it is asymtoptic, but I'm not sure if it's worth to explain it.
I may try some editing later. -- Rafael
I am also not sure whether it is worth explaining the complexity stuff, probably some links to the related pages in Wikipedia will suffice.
Bill: Thanks, guys. :-) I was mainly interested in the recent language edits, which I guess are OK as far as they go.
Rafael: I understood. In my answer it was implicit that the language changes were ok. :-)