だえん
楕円
1. ellipse; oval
2. EllipseIn mathematics, an ellipse (from Greek ἔλλειψις elleipsis, a "falling short") is a plane curve that results from the intersection of a cone by a plane in a way that produces a closed curve. Circles are special cases of ellipses, obtained when the cutting plane is orthogonal to the cone's axis. An ellipse is also the locus of all points of the plane whose distances to two fixed points add to the same constant.
Read “Ellipse” on English Wikipedia
Read “楕円” on Japanese Wikipedia
Read “Ellipse” on DBpedia
Read “Ellipse” on English Wikipedia
Read “楕円” on Japanese Wikipedia
Read “Ellipse” on DBpedia
橢円 【だえん】
橢円: Rarely-used kanji form.
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