13.多元函数微分学

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基本概念

邻域

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极限

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连续

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偏导数（例题）

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可微

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important

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多元函数微分学

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全微分形式的不变性

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隐函数存在定理

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二阶函数的拉格朗日定理

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多元函数的极值和最值

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条件极值和拉格朗日乘子法

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最（远）近点的垂线定理

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有界闭区间上连续函数的最值问题

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