利用特征根研究二次曲面的切平面问题

The Study on Tangent Plane of Quadric Surface by the Characteristic Root

利用特征根研究二次曲面的切平面问题,给出了平面为二次曲面的切平面的充要条件.

This is an essay in which we study on tangent plane of quadric surface by using the characteristic root, we give a necessary and sufficient condition for plane to be the tangent plane of the quadric surface.