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this is digit recognition using som

说明：  2005年电力部数学建模大赛题目： 共有61个比赛项目，1050人参加比赛。请给出算法及其框图，同时给出合理的比赛项目排序表，使连续参加两项比赛的运动员人次尽可能的少；表中“＃”号位置表示运动员参加此项比赛。建立此问题的数学模型，并且合理安排比赛项目顺序，使连续参加两项比赛的运动员人次尽可能的少；程序使用了最小生成树算法。(2005 Mathematical Modeling Contest subject : a total of 61 events, 1,050 people participate in the competition. Please give algorithm and its frame, the event is a reasonable ranking table to enable participation in two consecutive games of 000 athletes as less; Table "#" locations athletes this game. This established the mathematical model, and reasonable arrangements event sequence, and allows the two consecutive games of 000 athletes as less; Procedures for the use of the minimum spanning tree algorithm.)

说明：  一个用MATLAB的蒙特卡罗方法模拟放射性粒子运动轨迹的东西，很好玩的，大家可以一起讨论一下··(A simulation using the Monte Carlo method in the MATLAB something of the radioactive particle trajectories, it was fun, we can discuss it with)

该算法用于实现静基座二位置捷联惯导初始对准(The algorithm used to implement static base two position SINS initial alignment)

本书描述光纤中超连续谱产生,其中包含Matlab源代码，欢迎下载使用(Supercontinuum geration in optical fibers)

程序实现用牛顿－拉夫逊迭代法进行潮流计算。不仅有潮流计算，还有数据处理的程序(Procedure using the Newton- Raphson iterative method for flow calculation. Not only power flow calculation, as well as data-processing procedures)

说明：  EEGLAB工具箱中画erpimage时填写ITC参数画图时会报convert命令错误，换上上述m文件即可。(a m-file in EEGLAB erpimagev()，for a bug in run.)

to convert from depth to time in seismic data

使用matlab对基于高斯模型下的获取幅度估计的语音增强算法进行的仿真，效果较维纳算法和谱减算法有一定的改善。(Use matlab Gaussian model based on the estimated rate of access to speech enhancement algorithm for the simulation, the effect is less than the Wiener algorithm and the spectral algorithm has some improvement.)

matlab源码，主要包括基础的图形应用，界面编程，图像处理，数值分析。为方便阅读，将其整合成一个chm格式文档。(matlab source code, mainly based graphics application, interface programming, image processing, numerical analysis. To facilitate the reading, will be consolidated into a chm format documentation.)