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Feb 25, 2018 at 14:29 vote accept Manfred Weis
Feb 25, 2018 at 10:23 answer added Peter Heinig timeline score: 4
Feb 25, 2018 at 10:22 history edited Manfred Weis CC BY-SA 3.0
added hyperbolas as examples, where eccentricity is used in 2D geometry
Feb 25, 2018 at 9:55 history edited Manfred Weis CC BY-SA 3.0
added 43 characters in body
Feb 25, 2018 at 9:22 history asked Manfred Weis CC BY-SA 3.0