Inspired by a neat gif, [url]http://mathhombre.tumblr.com/post/65887395750/mirandamolina-elipse-de-van-schooten[/url], this is a construction of an ellipse by motion of a triangle. I have a Tumblr post that gives a bit more information about it: [url]http://mathhombre.tumblr.com/post/65994692165/i-saw-this-great-gif-of-the-van-schooten-ellipse[/url]
