二次曲面间交线极限点的确定

Determine line of intersection of quadratic surface revolution and surface of revolution

给出了确定几类二次曲面间交线上极限点的图解法,并给予了解析证明。对于用图解法求解二次曲面之间交线的问题有一定的参考作用。

The graphic method of extreme value points to quadratic surface and surface of revolution is given and proved, and the measure is beneficial to graphic method line of intersection surface revolution surface of revolution and surface of revolution.