Does anyone know any good books or sites on 4-dimensional math\geometry? Thanks.

Ever read Madeleine L''Engle''s "A Wrinkle in Time" series? You can read about tesseract''s in there, somewhat, though its a series of novels rather than technical books.

That said, I don''t know of any good sites that talk about 4 dimensional geometry in general. There are quite a few applets that simulate the projection of a tesseract (a 4 dimensional hypercube) into the 2D computer display.

The forum FAQ has a couple of general math links, which almost certainly talk about higher dimension math.

Forum FAQ

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.

I found Convex sets and their applications by Steven Lay to be quite good for N-dimensional geometry, though much of the book deals with, not suprisingly, N-dimensional convex sets. However for most problems the contraints of a convex set aren''t all that bad...

*coughes and point to sig*


~V''lion

Bugle4d

There are lots of books and articles on my favorite hypercomplex 4d numbers, the quaternion...

yay quaternion!
yay book with good quatnerion refrences inside
my quatnerion demo!