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微分几何

微分几何. 微分 几何. 直纹曲面. 单叶双曲面是直纹面. 含两个直母线系. 直纹面在建筑学上有意义. 例如，储水塔、 电视塔等建筑都 有用这种结构的。. 双曲抛物面是直纹面. 含两个直母线系. 一般锥面. z. 0. y. x. 方程 F ( x,y,z ) = 0 是 n 次齐次的：. t 是任意数. F ( x,y,z ) = 0. 的图形是以原点为顶点的锥面；. n 次齐次方程. 准线. 顶点. F ( x,y,z ) = 0. 反之，以原点为顶点的锥面的方程是. n 次齐次方程. 锥面是直纹面.

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微分几何

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  1. 微分几何

  2. 微分几何 直纹曲面

  3. 单叶双曲面是直纹面 含两个直母线系 . 直纹面在建筑学上有意义 例如，储水塔、 电视塔等建筑都 有用这种结构的。

  4. 双曲抛物面是直纹面 含两个直母线系

  5. 一般锥面 z 0 y x 方程 F(x,y,z)= 0是 n次齐次的： t是任意数 F(x,y,z)= 0 的图形是以原点为顶点的锥面； n次齐次方程 准线 顶点 F(x,y,z)= 0. 反之，以原点为顶点的锥面的方程是 n次齐次方程 锥面是直纹面

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