关于无心二次曲面轨迹问题的研究

The Research on the Trajectory of Acentric Conicoid Problem

研究了过空间内任一定点的动直线上的点满足一定条件(此条件与定点、动直线和无心二次曲面之交点有关)的轨迹问题,此轨迹的方程仍表示无心二次曲面,并且给出了求动点满足本文中给定条件的无心二次曲面方程的方法。

The trajectory which came from a point of a movable straight through any certain point in space meet certain conditions（these conditions concerned with the point of intersection from fixed-point,movable straight and acentric conicoid） is studied.This equation of trajectory still expressed a acentric conicoid,and elicited a method of the acentric conicoid equation that a movable point meet the conditions of the thesis was given.