条件极值毕业论文

The function minimum problem and applies to be first simple the introduction next circular function the extreme value existence condition, next mainly in the function of many variables extreme value's related theory's foundation, using the quadratic form positive definiteness and the negative definiteness discussion function of many variables's extreme value distinguished that the law as well as asks the function of many variables with the lagrange multiplicator law the condition extreme value, finally expounds one Yuan separately through the model illustration topic, function of many variables extreme value application in reality.

函数的零点等价于对应方程的根，计算方法主要是解方程。对区间上的可导函数而言，函数的极值点是导函数的变号零点，这时极值点的计算方法是先求导，再求导函数的零点，再讨论零点两侧的导数符号，最后结论。所以要经历求导运算，解方程，解不等式等。对于区间上的不可导函数而言，函数的极值可能存在，因而极值点存在。往往用初等方法。需讨论。例如y=|x|,因为y=|x|≥0，当且仅当x=0时，ymin=0.所以极值点x=0.亲，以上是提供，供参考。您可以发散一下，并举些具体例子。必要时把零点和极值点的定义加进去。

我尽力了，很少翻译数学专业词汇。The function extreme problem and its application A brief introduction to the one-variable function of the extreme conditions for the existence of, followed by multi-variable function mainly in the theory of extreme value on the basis of the second type are the qualitative and multi-variable function negative qualitative discussion of extreme discrimination law and use the multiplier lagrange For multi-variable function of the extreme conditions, respectively, by the end of a typical example of that set out a dollar, multi-variable function extreme in practice the application. Key words: multi-variable function; extreme; quadratic; definite matrix; negative top matrix; extreme conditions