srm

For inverting a matrix, Gauss-Jordan elimination is about as efficient as any other method. For solving sets of linear equations, Gauss-Jordan elimination produces both the solution of the equations for one or more right-hand side vectors b, and also the matrix inverse A(-1). However, its principal weaknesses are (i) that it requires all the right-hand sides to be stored and manipulated at the same time, and (ii) that when the inverse matrix is not desired, Gauss-Jordan is three times slower than the best alternative technique for solving a single linear set.

对数据进行标准化，并在此基础进行主成分分析(princomp matlab)

这是一个用matlab模拟单缝弗朗禾费衍射，光强分布的程序代码(This is a matlab simulation of single slit franco for diffraction, the intensity distribution of the program code)

混沌模型logistc映射程序，描述昆虫变化的经典数学模型——虫口模型(Chaos Model logistc mapping procedures, changes in the classic description of insects mathematical model- Population Model)

设模拟带通信号频率范围1KHz—1.1KHz，设计一个采样频率8KHz数字频谱分析系统，要求频率分辨率0.1Hz。若对信号直接用FFT进行频谱分析(simulation based communications, with the frequency range 1KHz- 1.1KHz. Design of an 8 KHz sampling frequency digital spectrum analysis system requirements frequency resolution 0.1 Hz. If the signal directly FFT spectrum analysis)

此程序模拟了17X11的正方形光子晶体点阵作为能量偏分器的动态过程。(This program simulates a 17X11 square photonic crystal lattice energy as a partial divider dynamic process.)

基本拟牛顿法的参考程序，有一定的参考价值(Quasi-Newton method the basic reference program, has some reference value)

说明：  约瑟夫问题的实现：设有n个人围坐在圆桌周围，现从某个位置m（1≤m≤n）上的人开始报数，报数到k的人就站出来。下一个人，即原来的第k+1个位置上的人，又从1开始报数，再报数到k的人站出来。依此重复下去，直到全部的人都站出来为止。试设计一个程序求出出列序列。(Joseph realized the problem: There are n people sitting around the round table, is from a position of m (1 ≤ m ≤ n) reported on the number of people began to be reported to the k number of people to come forward. The next person, that is, the original positions on the first k+1 people, and from the number reported at 1, then the number reported to the k to stand up. So repeat this until all the others can stand up. Try to design a program derived from the column sequence.)

很好的课件！里面涉及了；老师上课的所有内容，对于学习模式识别的同学，有较好的参考价值！(Good courseware! Which involves the teacher in class all the content, pattern recognition for the students to learn, have good reference!)

一个用matlab实现来从科技文章图例中获取数据的小程序. 目前只能处理单条数据线. 结果以文本形式保存. 既可以进行实际应用, 也可以作为 matlab 交互式界面操作的一个入门例子. (This code is used to grasp data x-y curves in scientific figures. )