| 二次系统焦点量的新算法 |
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| 引用本文： | 吴闽江.二次系统焦点量的新算法[J].宁德师专学报(自然科学版),2008,20(2):116-118. |
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| 作者姓名： | 吴闽江 |
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| 作者单位： | 宁德职业技术学院,福建,福安,355000 |
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| 摘 要： | 二次系统的细焦点的最高阶数为3，这是一个熟知的结果．但文1]给出上述结论却花了大量的篇幅．作者用Lienard方程的方法，重新计算了n=0时二次系统的焦点量，得到了相同的结论，并大大节省了篇幅．
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| 关 键 词： | 二次系统 焦点量 细焦点 Lienard方法 |
The new method in caculating focus values of quadratic differential systrm |
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| WU Min-jiang.The new method in caculating focus values of quadratic differential systrm[J].Journal of Ningde Teachers College(Natural Science),2008,20(2):116-118. |
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| Authors: | WU Min-jiang |
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| Institution: | WU Min - jiang ( Ningde Vocational and Technical college, Fu＇an Fujian 355000, Chine) |
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| Abstract: | It is known to all that the maximam order of wear focus is three For guadratic differential system. Paper 1 ] have proved a boue conclusion. In this paper, With new lienard methed , We will calculate the focus values of guadratie system with n = 0. |
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| Keywords: | quadratic system focus volues weak focus lienard method |
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