ABSTRACT
If b i is not an ideal point, i.e., if eu) — ai£i + a ^ 0 , one obtains the inhomogeneous coordinates
If £i = 1, the coefficients of ai and a sum to one, i.e., they are the barycentric coordinates of b i with respect to ai and a. This means geometrically that
b i divides a and ai in the ratio ax : a.
