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Subject: "3 foci ellipses"     Previous Topic | Next Topic
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The Jaffe's (Guest)
Dec-05-00, 10:00 PM (EST)
"3 foci ellipses"
   Is there such a thing as a three-foci ellipse, and does it occur naturally in nature if it exists?

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Charter Member
672 posts
Dec-05-00, 10:48 PM (EST)
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1. "RE: 3 foci ellipses"
In response to message #0
   I do not know. I see no reason why a locus of points whose distances to three fixed points add up to a constant would not exist. But I never saw this discussed. Try posting your question to the sci.math newsgroup. Let me know if you learn anything.

Alexander Bogomolny

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