An ellipse is a plane curve that results from the intersection of a cone by a plane in a way that produces a closed curve. It is the locus of all points of the plane whose distances to two fixed points add to the same constant.
An ellipse is a plane curve that results from the intersection of a cone by a plane in a way that produces a closed curve. It is the locus of all points of the plane whose distances to two fixed points add to the same constant.