> finally there's the 5D conformal GA, which is supposed to not have all this nastiness, but it's hard to find anything resembing practical on it Give Versor[0

> finally there's the 5D conformal GA, which is supposed to not have all this nastiness, but it's hard to find anything resembing practical on it Give Versor[0] a try. Implementation is fast, solid, with lots of example code. I'm no math genius, but it makes sense to me. The book Geometric Algebra for Computer Science was also helpful. Pablo (Versor developer) has some nice videos and write-ups on it too. That said, I totally agree that GA in general is WAY too abstract. I don't give a shit about the intricacies of the math, what I care about are access to geometric objects that behave normally, where it takes very little code to go from "this is what I want to do" to "okay, it's doing it." Make me a circle from these three points, then rotate it by this much about this line—that kind of thing. I want the simple stuff to be stupid simple, and so far, Versor has been sufficient. [0] http://versor.mat.ucsb.edu/ http://versor.mat.ucsb.edu/