摘要
介绍了配极对应的基本概念，以及利用配极对应的基本原理解决画法几何中求直线与二次曲面贯穿点的作图和求二次曲面切平面的作图。
In this paper,the conception about polarity is introduced.This conception can be used to solve questions of finding the penetrating point of line into a quadratic surface,also of finding the tangent plane of quadratic surface in descriptive geometry.
出处
《哈尔滨建筑大学学报》
1998年第3期114-116,共3页
Journal of Harbin University of Civil Engineering and Architecture
