关于双曲面和抛物面的平截线研究

The Discussion about the Curves of Plane Section on the Hyperboloid and Paraboloid

利用坐标变换把平面方程化成新坐标系下的某一坐标面上的方程,从而将一般的平截线转化为新坐标系中的坐标平面截线,这样一般平截线的问题就可以解决了.

In this article a plane equation is changed into the equation of a coordinate plane in the new coordinate system by the coordinate transformation. Then the curve of a general plane section is changed into the curve of a coordinate plane section under the new coordinate system. Thus, the problem can be solved under the coordinate plane.