Does anyone here know of any lengthy texts on the subject? I have been hard-pressed to find anything past the fact that the nth row can be used to construct an (n-2)-dimension simplex.
http://www.lib.cam.ac.uk/RareBooks/PascalTraite/pascalintro.pdf [Broken]
(its about pascal treatment of the arithmetic triangle, prolly it discusses something abt pascal triangle and its relation to geometry[??])