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自宣言型记时器，可以自定义记时方式，标题，时间长度等。(Since the Declaration type chronograph, you can customize chronograph, title, time, length and so on.)

mapinfo二次开发，用basic开发一个城市规划中的土地和建筑分析(MapInfo second development with the development of a basic urban planning and construction of land analysis)

COPULA实际例子最近写论文要用到R软件，但是对r软件零基础.(COPULA practical example recently used R software to write papers, but R software zero basis.)

pb开发的计算器，已经经过调试，可以满足基本的计算器要求，有需要的可以下载( pb development of the calculator, after debugging, to meet the basic requirements of the calculator, there is a need to download)

新型热力循环，用于计算能量利用系统，性能分析(The example shows how to use MATLAB, a new energy cycle.)

对Excell文件进行读写操作,并可以创建excell文件(Read and Write the excell file)

VB语音报数计算器源程序,有需要的就下载吧。(Talking Calculator VB source code, there is a need to download it.)

编写C程序，随机给出n*n的邻接矩阵，并打印输出邻接矩阵，以及有向图的边的个数，每个顶点的度，并判断该图中是否存在Euler回路： （1）如果为n阶，则随机产生一个n*n的邻接矩阵； （2）输出邻接矩阵，边的个数，每个顶点的度以及图中是否存在Euler回路。 这个题目涉及到了两个主要的知识点，一个是数据结构中的有向图的邻接矩阵的创建，还有就是离散数学中的Euler回路的判定定理。(The preparation of C procedures, were randomly given n* n s adjacency matrix and adjacency matrix printouts, as well as to map the number of edges, each vertex degrees, and determine the existence of the map Euler circuit: (1) If for n-order, then randomly generated a n* n adjacency matrix (2) output adjacency matrix, the number of edges, each vertex of degree as well as map the existence of Euler circuit. This topic relates to two main points of knowledge, a data structure of digraph adjacency matrix of creation, there is discrete mathematics in the loop to determine Euler theorem.)

6自由度齿轮系统动力学仿真程序，包括分岔，相图，庞加莱映射，混沌。(6 DOF gear system dynamics simulation program, including bifurcation, phase diagram, Poincare mapping and chaos.)

说明：  很好的源代码LDPC，主要实现LPDC概率域上的译码问题(Good source code LDPC, the main domain on the probability of LPDC decoding problem)