
Conic eccentricity through five points
Posted:
Jun 6, 2013 10:25 PM


cool problem; I knew about 5 points defining a conic, but not that it was related to those coeffs., duh.
> Find eccentricity of a conic in terms of 5 points (x1,y1) to (x5,y5); as there are 5 constants in a x^2 + 2 h x y + b y^2 + 2 f x + 2 g y = 1.

