... value expressive function 价值表达功能 extreme value of function 函数极值 Value of function 函数值 ; 功能价值含量 ...
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In the paper, it provides the geometrical solution to extreme value of many variables function by geometric properties of objective function or constraint condition.
本文中，利用目标函数或约束条件的几何性质，提供了某些多元函数极值或最值问题的几何解法。
Wenxue li put forward a sufficient condition of conditional extreme value with Lagrange function but his proof is wrong.
摘要李文学用拉格朗日函数提出求条件极值的充分条件，但他的证明却是错误的。
The criterion extreme value of binary function for first partial derivative is given by means of the mean value theorem. The two theorems are obtained.
以中值定理为工具，给出了利用一阶偏导数判定二元函数极值的方法。
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