Animated generation of ellipse

The spherical view (stereographic projection) is included for visualizing the motion also at infinity (intersections of the red directrix with the blue circumference of the view).

Please enable Java for an interactive construction (with Cinderella). Please enable Java for an interactive construction (with Cinderella).

[ conics | GA with Cinderella ]

Soli Deo Gloria. Created with Cinderella by Eckhard Hitzer (Fukui).