Travaux de Laumon
In the first part, we assume well known characteristics of ellipse which are given by triangle construction using main circles. We extend them on some lesser known features like Apollonius's theorem of associated radii of the ellipse. In the second part, we assume triangle construction of ellipse given by associated radii.
The term "Algebraic Analysis" in the last two decades is used in two completely different senses. It seems that at least one is far away from its historical roots. Thus, in order to explain this misunderstanding, the history of this term from its origins is recalled.