koch

利用混沌系统给图像加密，加密方法简单易懂，对初学者很好理解(Image encryption using chaotic systems ，encryption method is simple and easy to understand, good for beginners to understand)

说明：  将数组a[0]~a[size-1] 中重复的字母删除（仅仅保留第一次出现的字母，后续的重复字母均删除）(The array a [0] ~ a [size-1] Remove duplicate letters (just the first time to retain the letters, follow-up letters were removed duplication))

基于matlab环境下的自相关函数的周期图功率谱密度(Based on the power spectral density of the autocorrelation function of the periodogram in Matlab environment)

整数规划的matlab代码，常用的优化工具！(Integer programming matlab code, commonly used optimization tools!)

quad copter design and simulation

PUMA(Phase Unwrap Max Flow) for matlab

说明：  拟牛顿迭代法是相对比较新的一种方法，克服了牛顿迭代需要求导数和求逆的缺点.(Newton iterative method is a relatively new method of Newton shall be required to overcome the derivative and inverse shortcomings.)

由于非线性光学中计算非线性折射系数的数值模拟(as calculated nonlinear optical nonlinear refractive index of numerical simulation)

Matlab的行优先算法，可以方便的判断对如机场、火车站、公交车的就座问题进行分析(Matlab line priority algorithm, it will be convenient for the judge, such as airports, railway stations, bus seat to undertake an analysis of)

《MATLAB 7.X程序设计》-王建卫-源代码及习题答案(" MATLAB 7.X program design" - Wang Wei- the source code and answer exercises)