title: Ellipse bounding a rectangle
body: <p>Maths101 question - does anyone know how to calculate an ellipse (width/height) that will enclose a given rectangle. Obviously there is no single ellipse - I'm after an algorithm that will give me various width/height combinations - or perhaps the smallest area of ellipse? It's for a GUI, so an aesthetically pleasing ratio of height/width is what I'm looking for.</p>
  
  <p>Thanks in advance.</p>