| 交比与无穷远元素 |
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| 引用本文： | 高秀娟,崔凤午,宋玉辉.交比与无穷远元素[J].松辽学刊,2007,28(2):89-91. |
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| 作者姓名： | 高秀娟 崔凤午 宋玉辉 |
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| 作者单位： | 白城师范学院数学系 吉林白城137000 |
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| 基金项目： | 吉林省教育厅科技计划项目 |
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| 摘 要： | 交比和无穷远元素是射影几何中的两个重要概念,它们是探讨图形射影性质的主要工具.本文主要探讨它们在初等几何问题以及二次曲线分类问题中的应用.
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| 关 键 词： | 交比 无穷远元素 应用 |
| 文章编号： | 1000-1840-（2007）02-0001-03 |
| 收稿时间： | 2007-03-05 |
| 修稿时间： | 2007-03-05 |
Cross Ratio and Element at Infinity |
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| GAO Xiu-juan,CUI Feng-wu,SONG Yu-hui.Cross Ratio and Element at Infinity[J].Songliao Journal (Natural Science Edition),2007,28(2):89-91. |
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| Authors: | GAO Xiu-juan CUI Feng-wu SONG Yu-hui |
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| Affiliation: | Department of Matheratics, Baicheng Normal College, Baicheng, Jilin, 137000 |
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| Abstract: | Cross ratio and element at infinity are two important concepts with projective geometry and primary tools in considerate projective property of figures.This paper primary discuss the applications of the problems with concurrent and cllinear and classification of quadratic curve. |
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| Keywords: | Cross ratio element at infinity application |
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