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：极值分布在计量经济学、金融工程、计算生物学、工程测量中都有用途，一般常用最小二乘法估计 其参数，但最小二乘法的误差较高．极大似然估计具有比最4 -乘法更好的性质，但由于它的计算往往比较麻 烦．通过极大似然法估计了极值分布的参数，同时给出了求参数的数值解的算法，并通过Matlab程序实现了 这一算法． (: Extreme value distribution in econometrics, financial engineering, computational biology, engineering measurement purposes are generally used to estimate the parameters of least squares, but a higher least squares error. Maximum likelihood estimation than the 4'-multiplication better nature, but because it is often too much trouble to the calculation. Through the maximum likelihood method estimates the parameters of the extreme value distribution, while the parameters are given for the numerical solution of the algorithm, Matlab program by the algorithm.)

其基本思想是取B样条函数 为及基函数，在[a,b]中均匀划分区间，xi=a+ih,h=(b-a)/n,由于三次样条函数空间是n+3维的，所以把分点扩充到x-1,xn+1,则任意三次样条函数可用 线性组合来表示：(The basic idea is to take B-spline function and basis functions in [a, b] in the evenly divided intervals, xi = a+ ih, h = (ba)/n, because the cubic spline function is n+3 dimensional space , so the expansion points to the x-1, xn+1, then any cubic spline function can be expressed as a linear combination:)

显示接收UART接口的数据，解析接收到的数据，对满足命令格式的数据做出响应。 驱动LCD做相应显示。 驱动蜂鸣器按照设定参数发出蜂鸣声。

基于三星ARM7程序开发,最经典的程序设计.由BOOT程序导入工作程序.(Samsung ARM7-based program development, the most classic programming. By the BOOT program to import procedures.)

这是一个自己写的完整的ADO类 包含了两部分(This is a complete write their own ADO class contains two parts)

二总线设计系列三：从站原理设计（原理图+pcb）(Two bus design series three: from the station principle design (schematic diagram +pcb))

这是一款模拟modbus从机的程序，可以方便用户调试modbus程序，本程序完全免费。(This is a simulation of the modbus from machines, can facilitate users to debug the modbus program, this program is completely free. )

二叉树在非递归算法中，后序遍历难度大，很多书上只给出思想或者几段无法直接调试的代码，甚至有些书上是错的，当时我在研究的过程中，就是按着书上错误的代码绕了好半天，几预抓狂。好在最终摸索出来了(Binary Tree in non-recursive algorithm, after the preorder is difficult, given the many books just thinking or paragraphs not directly debugging code, and even on some of the books is wrong, I was in the process of the study, according to the book is error code around for ages, a few pre-crazy. Fortunately, the final fumble out)

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