free geometry math
location math
Speaking of frameworks, the intent here is a framework within which to develop a mathematics for 3D, by which I mean a program.
First I'm collecting some general notes in this location - via links - and then hopefully I can add details, keeping everything collected in this central location.
I am not, of course, inventing 3D. My critique of 3D is that it's not Free, by which I do not so much mean that you must pay, but that it is irrationally inaccessible and limited.