coord_change

进行FFT变换，可以进行2纬fft，最原生的FFT程序。(FFT transform)

数字图像处理用非局部均值方法，其中仔细介绍了非局部均值的原理，用法(A Non Local Algorithm for Image Denoising)

music算法的空间平滑法程序，对协方差平滑后看到对相关信号的空间谱估计准确(music algorithm, spatial smoothing procedures, see the relevant signal space spectrum estimation accurate smoothed covariance)

Fisher是多元统计分析的常用的方法之一，判别分析方法可在各种领域得到应用。一般用于确定属于一个可观测量是什么类型。(Fisher method is one of the common methods of multivariate statistical analysis, discriminant analysis method can be applied in various fields. Usually used to determine what type of a observables belonging.)

弹簧振子的simulink仿真，基本的振动系统，二阶线性微分方程(simulink simulation of spring-mass system, general vibration system, ode2 linear differential equation)

sliding mode and fuzzy

matlab 实现随机分形算法 羊齿叶 一类重要的随机分形算法(Implementation of random fractal algorithm fern leaf A class of random fractal algorithm is important)

非常经典的分数阶傅里叶变换源程序，经测试，无问题(frft)

Matlab基础程序联系：成绩统计,练习switch和if else组合；抽样定理(Matlab basic function design for scord statisticing and Nyquist )

matlab,多点侧面抽运高功率双包层光纤激光器数值仿真。(matlab, multi-point side-pumped high power double-clad fiber laser numerical simulation.)