| 一根直尺作二次曲线切线的问题 |
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| 引用本文： | 梁碧珍.一根直尺作二次曲线切线的问题[J].广西民族大学学报,1998(4). |
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| 作者姓名： | 梁碧珍 |
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| 作者单位： | 广西右江民族师专数学系 |
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| 摘 要： | 论述分别利用二次曲线极点与极线的理论和巴斯卡定理的特殊情形，求作二次曲线上已知点的切线问题，得到两种精确的切线作图法．
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| 关 键 词： | 二次曲线 极点 极线 切线 共轭 交比 完全四点形 |
On a Tangent Line of Quadratic Curve By Only a Ruler |
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| Liang Bizhen.On a Tangent Line of Quadratic Curve By Only a Ruler[J].Journal of Guangxi University For Nationalities(Natural Science Edition),1998(4). |
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| Authors: | Liang Bizhen |
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| Abstract: | Basing on the theory of utmost line,utmost point and specific forms of PASCA theorem,the author discusses the problem of doing a tangent line of quadratic curre. |
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| Keywords: | Quadratic curve Utmost poin Utmost line Tangent line Conjugate internal ratio Complete quadrangle |
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