MACD-Divergence-EA

根据已知的三维离散数据（x,y,z）,在MATLAB中利用此函数进行三维曲面拟合，再根据polyval2d得出拟合函数的系数矩阵。(according to 3D discrete datum (x,y,z),use this function in MATLAB to fit 3D surface, and use polyval2d to get coefficient matrix)

一个关机恶搞程序，仅供娱乐，其实很简单就用了system函数(A spoof shutdown procedures, for entertainment purposes only, is actually very simple to use system functions)

利用类处理异常，实现根据异常处理规则，进行异常捕获(The use of unusual types of processing to achieve exception handling in accordance with rules capture abnormal)

说明：  matlab书籍很好 很好 的文章 (matlab books very good very good article)

这是一本很经典的教程！不知道有人传过没有。先传上来，希望有用(This is a very classic tutorial! Some people do not know they could not mass. Chuan-first onto the hope that useful)

用于ABAQUS显示分析的子程序，材料本构模型内嵌断裂准则，可用于单元删除。(用于ABAQUS显示分析的子程序，材料本构模型内嵌断裂准则，可用于单元删除。 用于ABAQUS显示分析的子程序，材料本构模型内嵌断裂准则，可用于单元删除。 ABAQUS analysis for the display subroutine, material constitutive model embedded fracture criteria, can be used to remove the unit.)

Exchange rate changes

应用matlab 调用epanet 软件进行管网水力学计算。(Application to call Matlab epanet software pipe network hydraulic calculation.)

说明：  递归，是函数实现的一个很重要的环节，很多程序中都或多或少的使用了递归函数。递归的意思就是函数自己调用自己本身，或者在自己函数调用的下级函数中调用自己。 递归之所以能实现，是因为函数的每个执行过程都在栈中有自己的形参和局部变量的拷贝，这些拷贝和函数的其他执行过程毫不相干。这种机制是当代大多数程序设计语言实现子程序结构的基础，是使得递归成为可能。(Recursion, is a function to achieve a very important part of many programs are more or less use the recursive function. Recursive mean that the function of its own call to themselves or subordinates in their own function calls a function to call their own. Recursion that can be achieved because the function of each execution in the stack has its own shape parameters and local variables of the copy, the copy and the implementation process has nothing to do other functions. This mechanism is the most modern programming language implementation subroutine structure of the foundation is to make recursion possible.)

The attached source code is the implemenation of acoustic echo canceller and noise reduction.