All you need to know about 3D math is there :-)

Engines, Libraries and Tools Java 3D
#1

I found this web site and think it could help many people so I post the link, have a look all answer to your math questions are theire mostly explained in simple words

http://www.j3d.org/matrix_faq/matrfaq_latest.html

#2

Yeah, great FAQ, this is another one of my favourites: Geometric Tools

#3

also very cool, thanks

#4

The j3d.org link is quite basic, but GeometricTools is really cool! Lots of source and descriptive documents.

Thanks for the links!