title: Equation of an ellipse passing through three points?
body: <p>I would like to create an animation of an object using an elliptical path. I realize there may be an infinite number of possible ellipses given three points, but so long as I can find one that will allow me to animate along that path, I'm fine. </p>
  
  <p>If it helps, the points are (0,0) (500,0) and (1000,1000). So the second point is halfway between the other two. </p>