With these points, affine elements of the quadric curve, such as the center, conjugate diameters and asymptotes etc, may be constructed by means of a scale and a com-pass, and consequently the quadric curve may be classified affinely.

  • 由这些给定的点,用直尺和圆规容易作出此二次曲线的仿射要素,例如中心、共轭直径和渐近线,等等,从而可将此二次曲线进行仿射分类。

  • 互联网摘选 2025-01-19 23:56:12

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