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。
In the paper, it provides the geometrical solution to extreme value of many variables function by geometric properties of objective function or constraint condition.
本文在一个不规则网路上离散拉普拉斯运算元的差分格式，不但能满足相容性及极值原理，而且还具有误差极少性质。
The paper gave disperse pattern of laplace function under in - uniform grid, which fulfills acceptance character and error maximization theory. it also has fulfills the character of extreme value.
在一个不规则网络上离散拉普拉斯算子的差分格式，不但能满足相容性及极值原理，而且还具有误差极小性质。
The paper gives disperse pattern of Laplace functor under in-uniform grid, which fulfills acceptance character and error minimum theory, extremes value principle.
应用推荐