By: Nobody/Anonymous  nobody 

By: Martin Baker  martinbaker 
Thanks very much, this is very interesting, I have
been trying to work out where the "sandwich product"
comes from, it looks like some sort of morphism, but Ive not
managed to work it out. 
By: Nobody/Anonymous  nobody 

By: Martin Baker  martinbaker 
Thanks very much there is a lot for me to
followup here so Ive got a lot of work to do! 
By: Martin Baker  martinbaker 
I have been trying to check how we can get an
algebra where: a = Q * b 
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see also: 

Correspondence about this page  
Book Shop  Further reading. Where I can, I have put links to Amazon for books that are relevant to the subject, click on the appropriate country flag to get more details of the book or to buy it from them. 
Introduction to 3D Game Programming with DirectX 9.0  This is quite a small book but it has good concise information with subjects like, maths introduction and picking. If you are interested in 3D games, this looks like a good book to have on the shelf. If, like me, you want to have know the theory and how it is derived then there is a lot for you here. Including  Graphics pipeline, scenegraph, picking, collision detection, bezier curves, surfaces, key frame animation, level of detail, terrain, quadtrees & octtrees, special effects, numerical methods. Includes CDROM with code. This book contains more mathematically rigorous methods for picking than described above. 
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