摘要
把二次曲线中的定值进行了系统分类、归纳整理,并给予证明,可供学习二次曲线的性质时参考。
The aim of this article is to classify the definite value of quadric curve, to sum it up, to arrange it, and to give evidences of it. It will be a consulting one for those who are studying the character of quadric curve.
出处
《昆明学院学报》
1995年第S1期51-61,共11页
Journal of Kunming University
关键词
二次曲线
常量
定值
不变量
距离
切线
渐近线
Quadric curve, constant quantity, definite value, invariant, distance, tangent,asymptote
