GoKawiilBlog post argues projective plane is best taught via homogeneous coordinates, not abstract topology
A mathematics-focused newsletter post reflects on how the projective plane is traditionally introduced in topology courses through abstract constructions like edge-gluing a square or identifying antipodal points on a sphere. The author argues a more intuitive route is representing plane points as (x, y, 1) with (x, y, 0) denoting points at infinity, a technique the author says resembles what graphics programmers independently arrive at. The piece is framed as commentary accompanying recent posts in the author's newsletter.