| 二元函数可微的充要条件 |
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| 引用本文： | 戴文惠. 二元函数可微的充要条件[J]. 山西师范大学学报：自然科学版, 1994, 8(1): 1-4 |
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| 作者姓名： | 戴文惠 |
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| 作者单位： | 陕西师范大学数学系 |
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| 摘 要： | 本文研究了面增量的若干性质,给出了二元函数可微的充要条件.
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| 关 键 词： | 面增量 可微性 |
A Suffieient and Necessary Condition for the Differentiability of two Variables Function |
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| Dai Wenhui. A Suffieient and Necessary Condition for the Differentiability of two Variables Function[J]. Journal of Shanxi Teachers University, 1994, 8(1): 1-4 |
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| Authors: | Dai Wenhui |
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| Abstract: | In this paper the properties of planar increament are studied. The sufficient and necessary Condition for the differentiability of two vaniables function is given. |
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| Keywords: | Planar increament Differentiability |
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