Reflections in an Elliptical Region  vertical half-axis length — length of the vertical half-axis of the ellipse, measured in units of the length of the horizontal half-axis number of reflections — number of reflections to carry out starting position — starting position of the ray starting angle — starting angle of the ray, measured against the normal erected at the starting point   "Reflections in an Elliptical Region" from The Wolfram Demonstrations Project http://demonstrations.wolfram.com/ReflectionsInAnEllipticalRegion/ Contributed by: Michael Trott |
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