Projective Geometric Algebra (PGA)
- is a specific type of geometric algebra that adds one “projective” dimension to the space that you’re working with. This is where the conventional homogeneous coordinates live. It does not have to be based on 3D space (which becomes 4D), but that’s the most common one
- a PGA based on 𝑛-D space is a geometric algebra with signature (𝑛,0,1)
- TODO Projective Geometry