摘要
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、动直线和二次曲面之交点有关)的轨迹问题,得出了两个重要的结论,此轨迹的方程仍表示二次曲面,并且给出了求动点满足本文中给定条件的二次曲面方程的方法,此结论与方法推广了已有的结论.
This thesis studied on 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 conicoid）,and conclude two important conclusion,this equation of trajectory still expressed a conicoid,this theses also elicited a method of the conicoid equation that a movable point meet the conditions of the theses was given,this conclusion and method improve existing knowledge.
出处
《陕西科技大学学报（自然科学版）》
2010年第6期161-164,共4页
Journal of Shaanxi University of Science & Technology
关键词
二次曲面
轨迹
方程
conicoid
trajectory
equation
