摘要
首次以齐次射影坐标研究平面场上的对偶问题,揭示出对偶问题的本质:在平面场上,同一齐次射影坐标既可表示点、也可表示直线;并且所表示的点与直线之间有对偶关系。
Using homogeneous prouective coordinate ,this paper researches dual of plane field and reveals the essence of plane field-the same coordinate represents both point and line ,and there is dual relation in the point and the line.
出处
《昆明理工大学学报(理工版)》
1998年第1期85-89,共5页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
平面场
齐次
射影
坐标
对偶
plane field ,point ,line,homogeneous,prouective,coordinate,dual