2021-03-03.md - introduction2021-03-10.md - plane geometry2021-03-17.md - sweeping algorithms2021-03-24.md - sweeping algorithms2021-03-31.md - polygons2021-04-07.md - polygons2021-04-14.md - convexity2021-04-21.md - convexity2021-04-28.md - DCEL, arrangements2021-05-05.md - duality2021-05-12.md - Voronoi diagrams2021-05-19.md - Delaunay triangulation2021-05-26.md - range trees