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10. 抛物面

10. 抛物面. 三元二次方程所表示的曲面成为二次曲面。该部分讨论一类特殊的二次曲面 —— 抛物面,主要涉及椭圆抛物面和双渠抛物面的形状与性质。 10.1 椭圆抛物面 10.2 双曲抛物面. 10.1 椭圆抛物面. z. y. 0. x. 截痕法. 用 z = a 截曲面. 用 y = b 截曲面. 用 x = c 截曲面. 返 回. z. y. 0. x. 10.1 椭圆抛物面. 截痕法. 用 z = a 截曲面. 用 y = b 截曲面. 用 x = c 截曲面. 返 回. 10.2 双曲抛物面. z. x. 0. y.

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10. 抛物面

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  1. 10. 抛物面 • 三元二次方程所表示的曲面成为二次曲面。该部分讨论一类特殊的二次曲面——抛物面,主要涉及椭圆抛物面和双渠抛物面的形状与性质。 • 10.1 椭圆抛物面 • 10.2 双曲抛物面

  2. 10.1椭圆抛物面 z y 0 x 截痕法 用z = a截曲面 用y = b截曲面 用x = c截曲面 返 回

  3. . z y 0 x 10.1椭圆抛物面 截痕法 用z = a截曲面 用y = b截曲面 用x = c截曲面 返 回

  4. 10.2双曲抛物面 z x 0 y (马鞍面) 截痕法 用z = a截曲面 用y = 0截曲面 用x = b截曲面 返 回

  5. . z x 0 y 10.2双曲抛物面 (马鞍面) 截痕法 用z = a截曲面 用y = 0截曲面 用x = b截曲面 返 回

  6. . z x 0 y 10.2双曲抛物面 (马鞍面) 截痕法 用z = a截曲面 用y = 0截曲面 用x = b截曲面 返 回

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