In this chapter, we study the geometry of the plane described by the conformal disc model. For briefness, this plane will be called the h-plane. We can work with this model directly from inside of the Euclidean plane. We may also use the axioms of neutral geometry since they all
hold in the h-plane; the latter proved in the previous chapter.
- 13.3: Circles, Horocycles, and Equidistants
- In this section we will describe the h-geometric meaning of the intersections of the other circles with the h-plane. You will see that all these intersections have a perfectly round shape in the h-plane.