| 关于线性代数的两个结果 |
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| 引用本文： | 沈德安.关于线性代数的两个结果[J].电机与控制学报,1989(2). |
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| 作者姓名： | 沈德安 |
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| 作者单位： | 哈尔滨电工学院数学教研室 |
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| 摘 要： | 本文建立了以下两个结果:(1)行列式的一个降阶计算公式;(2)矩阵具有正定性的一个充要条件.
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| 关 键 词： | 行列式 正定矩阵. |
Two Results on Linear Algebra |
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| Shen Dean.Two Results on Linear Algebra[J].Electric Machines and Control,1989(2). |
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| Authors: | Shen Dean |
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| Abstract: | In this paper the following two results are established. The first is a formula for computing the determinants by reducing the orders. The second offers a necessary and sufficient condition for a square matrix of positive definite. |
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| Keywords: | determinant positive definite matrix |
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