| 射影几何对共点共线问题的指导作用 |
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| 引用本文： | 吴险峰,张晓林.射影几何对共点共线问题的指导作用[J].高师理科学刊,1999,19(1):5-8. |
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| 作者姓名： | 吴险峰 张晓林 |
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| 作者单位： | 齐齐哈尔大学数学系(吴险峰)，齐齐哈尔市师范学校(张晓林) |
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| 摘 要： | 以共点共线问题为例，阐述射影几何的某些观点对初等几何的指导作用．
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| 关 键 词： | 中心射影 对偶原则 影消点（线） 极点 极线 |
Directing Effect of Projective Geometry on the Problems of Cointersection Lines and Collinear Points |
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| Wu Xianfeng ,Zhang Xiaolin.Directing Effect of Projective Geometry on the Problems of Cointersection Lines and Collinear Points[J].Journal of Science of Teachers＇College and University,1999,19(1):5-8. |
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| Authors: | Wu Xianfeng Zhang Xiaolin |
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| Abstract: | Explained idetail the directing role of a lot of viewpoint of projective geometry on cointersection lines and collinear points of elementary geometry. |
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| Keywords: | Central projection Duality principle Vanishing point Compound ratio Plane pole Polar line |
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