えんすいきょくせん
円錐曲線
1. conic curve; conic sectionMathematics
2. Conic section1. Parabola 2. Circle and ellipse 3. Hyperbola]] In mathematics, a conic section (or just conic) is a curve obtained as the intersection of a cone (more precisely, a right circular conical surface) with a plane. In analytic geometry, a conic may be defined as a plane algebraic curve of degree 2. There are a number of other geometric definitions possible.
Read “Conic section” on English Wikipedia
Read “円錐曲線” on Japanese Wikipedia
Read “Conic section” on DBpedia
Read “Conic section” on English Wikipedia
Read “円錐曲線” on Japanese Wikipedia
Read “Conic section” on DBpedia
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