円えん錐すい曲きょく線せん

noun

conic curve; conic section

Mathematical term for curves obtained by intersecting a plane with a cone, such as ellipses, parabolas, and hyperbolas.

• 円えん錐すい曲きょく線せんには、楕だ円えん、放ほう物ぶつ線せん、双そう曲きょく線せんが含ふくまれる。

  Conic sections include ellipses, parabolas, and hyperbolas.