In Yaglom's Complex Numbers in Geometry, the complex numbers can be interpreted as either: - points on a plane - points on a sphere (via one-point compactif

In Yaglom's Complex Numbers in Geometry, the complex numbers can be interpreted as either: - points on a plane - points on a sphere (via one-point compactification) - points on the hyperbolic plane The last is linked to the Poincare half-plane model and the Poincare disk models of hyperbolic geometry.