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18 changes: 11 additions & 7 deletions 14.10 Partial Derivatives with Constrained Variables/index.html
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<meta property="og:description" content="之前讨论的多元函数的偏导数问题都是关于独立变量的，但是变量之间也可能相互约束。例如，气体的内能表达式为 $U &#x3D; f (P,V,T)$，但是变量之间又受制于理想气体定律 $PV&#x3D;nRT$。">
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18 changes: 11 additions & 7 deletions 14.5 Directional Derivatives and Gradient Vectors/index.html
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<meta property="og:image" content="https://gitee.com/SamuelHuang2019/figure-bed/raw/master/img/20200620125015_Figure14.27.png">
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<p class="site-title">Samuel Huang's Portfolio</p>
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<p class="site-subtitle" itemprop="description">尽心，知性，知天</p>
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<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2024-06-22 21:13:22" itemprop="dateModified" datetime="2024-06-22T21:13:22-04:00">2024-06-22</time>
<time title="Modified: 2024-06-26 11:20:44" itemprop="dateModified" datetime="2024-06-26T11:20:44-04:00">2024-06-26</time>
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18 changes: 11 additions & 7 deletions 14.6 Tangent Planes and Differentials/index.html
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<meta property="og:locale" content="en_US">
<meta property="og:image" content="https://gitee.com/SamuelHuang2019/figure-bed/raw/master/img/20200621140613.png">
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<p class="site-title">Samuel Huang's Portfolio</p>
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</a>
<p class="site-subtitle" itemprop="description">尽心，知性，知天</p>
</div>

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<time title="Modified: 2024-06-26 11:20:44" itemprop="dateModified" datetime="2024-06-26T11:20:44-04:00">2024-06-26</time>
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