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XIE Yuheng

  • 雙曲幾何

    Book

    XIE Yuheng

  • 構造切線 / construct the tangent line

    Activity

    XIE Yuheng

  • 線之極點定理 / pole of a line theorem

    Activity

    XIE Yuheng

  • 雙曲線之極偶 / polarity for hyperbola

    Activity

    XIE Yuheng

  • 拋物線之極偶 / polarity for parabola

    Activity

    XIE Yuheng

  • 橢圓之極偶 / polarity for ellipse

    Activity

    XIE Yuheng

  • 極線對偶定理 / polar duality theorem

    Activity

    XIE Yuheng

  • 點之極線定理 / polar of a point theorem

    Activity

    XIE Yuheng

  • 給圓上的四點 觀察其所能形成的三對 阿波羅涅斯極偶 關係

    Activity

    XIE Yuheng

  • 極線獨立定理 / polar independence theorem

    Activity

    XIE Yuheng

  • 初犯九點圓

    Activity

    XIE Yuheng