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03极值与最值
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Published
10/05/2024
无条件极值的定义定义 设函数 \(z=f(x, y)\) 在点 \(P\left(x_{0}, y_{0}\right)\) 的某邻域内有定义, 若对该去心邻域内任意的 点 \(P(x, y)\) 均有\(\left.f(x, y)<f\left(x_{0}, y_{0}\right…
Published
10/05/2024
二元函数极值的必要条件设 \(z=f(x, y)\) 在点 \(\left(x_{0}, y_{0}\right)\) 存在偏导数, 且 \(\left(x_{0}, y_{0}\right)\) 为 \(f(x, y)\) 的极值点, 则_____, _____.
Published
10/05/2024
二元函数取极值的充分条件怎么描述
Published
10/05/2024
求二元函数极值的一般步骤
Published
10/05/2024
条件极值及拉格朗日乘数法
Published
10/05/2024
最大值与最小值\(\text { 求连续函数 } f(x, y) \text { 在有界闭域 } D \text { 上的最大最小值三部曲. }\)
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