| 椭圆一个性质的应用 |
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| 引用本文： | 段耀勇.椭圆一个性质的应用[J].中国人民武装警察部队学院学报,2000,16(4):49-50. |
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| 作者姓名： | 段耀勇 |
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| 作者单位： | 武警学院基础部!廊坊 065000 |
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| 摘 要： | 本文从“曲线与其曲率圆的位置关系”［１］得到启发;对［１］做了推广并利用［１］的结论解释几何先学中“费马原理”表述［４］的不严密性。
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| 关 键 词： | 曲率 曲率圆 费马原理 光程 |
A APPLICATION OF THE ELLIPSE'S' QUALITY |
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| Duan Yaoyong.A APPLICATION OF THE ELLIPSE'S' QUALITY[J].Journal of the Chinese People's Armed Police Force Academy,2000,16(4):49-50. |
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| Authors: | Duan Yaoyong |
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| Abstract: | Aftec the paper "THE POSITIONAL RELATIONSHIPS BETWEEN THE CURE AND ITS CURVATURE" 1] having been studied, the paper popularizes the conclusion of 1] and us- es it to point out the impertectly quality of Femart's Principle in optics. |
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| Keywords: | Curvature Curvature circle The Femart's Principle |
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