--- # 1. Euclidean Geometry (Week 1 - 3) [[Isometry group of real n-space with standard metric]]. [[Normal Form of Orthogonal Matrix]]. # 2. Spherical Geometry (Week 4-5) [[Isometry Group of n-Sphere]]. [[Area of Spherical Triangle (Girard's Theorem)]]. # 3. Hyperbolic Geometry (Week 6 - ) [[Hyperbolic Line is Isometric to Real Line]]. [[Lorentz Plane Intersects Hyperbolic Space]]. [[Projection of Line in Hyperbolic Plane to Euclidean Plane]]. [[Centre of Hyperbolic Circle]].