Talk:Focus (geometry)
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Shouldn't it be amended as follows:
In an ellipse, the sum of the distances from any point on the ellipse to the two foci is a constant (which is always the length of the semi-major axis of the ellipse)
- Of course it should; although saving the link takes work. Septentrionalis PMAnderson 23:12, 7 January 2007 (UTC)
