摘要
用射影基本不变量“交比”规定角的度量,会更合理,适应范围更广。利用二次曲线的射影理论讨论了二直线夹角的平分线的确定与性质。
It is more reasonable and more widely used to stipulate angular measure with cross ratio of projective invariant. The article discusses the determination and quality of angular bisector of two lines.
出处
《唐山师范学院学报》
2005年第5期26-27,共2页
Journal of Tangshan Normal University
关键词
交比
射影变换
调和共轭
迷向直线
cross ratio
projective transformation
harmonic conjugate
minimal line
