| 用矩阵的正定性判定多元函数极值的存在性 |
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| 引用本文： | 纪跃芝.用矩阵的正定性判定多元函数极值的存在性[J].吉林工学院学报,1995,16(4):71-75. |
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| 作者姓名： | 纪跃芝 |
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| 摘 要： | 本文提出了一种判断多元函数极值存在性的方法，用这种方法不仅能判断二元函数极值的存在性，而且能判断二元以上的函数极值的存在性，弥补了教材在这方面的不足，方法简便易学，便于掌握。
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| 关 键 词： | 多元函数 极值 正定矩阵 存在性 判断方法 高等数学 |
Determination on the Existence of Extremum in Multivariable Functions by the Positive Definiteness of Their Matrices |
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| Ji Yaozhi.Determination on the Existence of Extremum in Multivariable Functions by the Positive Definiteness of Their Matrices[J].Journal of Jilin Institute of Technology,1995,16(4):71-75. |
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| Authors: | Ji Yaozhi |
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| Institution: | Department of Basic Science |
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| Abstract: | A method to determine the existence of extremum in multivariable functions is presented. With this method, not only in bivariate functions, but also in multivariable functions,can the existence of extremum be determined. The method is easy to learn and convenient to use. |
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| Keywords: | multivariable function extremum positive definiteness matrix |
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