Well under the 'theory' part i thought I'd start a thread with good resources for math. There is always the problem around here of people (myself included) asking questions which aren't related to TV3D. Many of these questions relate to maths, and many are also not that difficult. It comes down to that thing "give a man a fish..." well this isn't teaching them to fish but it's sending them in the general direction of the fish.
I stumbled upon a site that has a pretty good explination of some math concepts, relating to games:
http://www.euclideanspace.com/index.htmlIt covers quaternions pretty well.
For more general maths stuff the best place i know of is:
http://mathworld.wolfram.com/wiki is generally pretty good as well.
Please add any math sites which you think the community could benifit from.
-Petroz