Hey, where can I find the formulae for determining if and where two lines intersect, two planes, and so on? I fake my way through the math on a lot of this stuff, so I'm not sure how to figure this stuff out.
Thanks!
Also, where are some good resources for figuring out what the vertices coordinates are for the polytopes? Which points are connected by lines, which points comprise a face, and all that. I can do the 5-cell, 8-cell, and 16-cell, but the others just blow my mind!