无穷远元素在初等几何中的应用  

The Application of Infinitive Far Element In Elementary Geometry

作　　者：唐秋林[1] 吴美云[1] 

机构地区：[1]南通师范学院数学系,江苏南通226008

出　　处：《临沂师范学院学报》2004年第3期32-34,共3页Journal of Linyi Teachers' College

摘　　要：讨论利用无穷远元素和Desargues定理证明初等几何中的共点与共线的问题,并就Desargues定理中的透视中心或透视轴为无穷远点或无穷远直线的情况作了讨论.The thesis is to explain the application of the infinite far element and Desargues theorem in the three points in one straight line, three straight lines through one point in element geometry, discuss the circumstances that Desargues theorem's perspective center or perspective line is infinite far point or infinite far straight line.

关 键 词：无穷远元素 共线点 共点线 DESARGUES定理 

分 类 号：O185.1[理学—数学]