摘要
在二次曲线的研究中,有些问题用射影几何的方法比用平面几何方法处理更简单、自然,且条理更清楚.用射影几何的方法,将二次曲线中的椭圆放在拓广平面上,给出椭圆特别是有关椭圆焦点的许多有趣性质.
In recent years,it has been found that the method of projective geometry is simpler,more natural and more coherent than that of plane geometry in the study of quadratic curves.In this paper,by means of projective geometry,ellipses in conic curves are placed on the extended plane,and many interesting properties of ellipses,especially those concerning the focus of ellipses,are given.
作者
王庆
周建伟
WANG Qing;ZHOU Jian-wei(Department of Mathematics and Physics,Suzhou Vocational University,Suzhou Jiangsu 215104,China;School of Mathematic Science,Suzhou University,Suzhou Jiangsu 215006,China)
出处
《大学数学》
2019年第5期102-106,共5页
College Mathematics
基金
国家自然科学基金(11271277)
江苏省“青蓝工程”
苏州市职业大学“青蓝工程”
苏州市职业大学教改课题(20170600757101)
