有心二次曲面轨迹问题的研究

The Research on the Trajectory of Central Quadric Surface 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、动直线和双曲面之交点有关)的轨迹问题,此轨迹的方程仍表示有心二次曲面,并且给出了求动点满足本文中给定条件的有心二次曲面方程的方法。

This theses studied on the trajectory which came from a point of a movable straight line through any fixed point in space meet certain conditions （these conditions concerned with the point of intersection from fixed-point, movable straight and hyperboloid）, this equation of trajectory still expressed a central quadric surface, this theses also elicited a method of the central quadric surface equation that a movable point meet the conditions of the theses was given.