最小二乘拟合，kf

说明：  PID多变量，源程序_多变量系统控制很好的资料(very good)

希尔伯特变换理论及matlab程序( Hibert for matlab )

自己写的快速傅里叶变换，处理N点数据的傅里叶变换，含两个MATLAB的M文件,可直接使用(Fast Fourier Transform, write your own data of the N-point Fourier transform, containing two MATLAB M-files can be used directly)

matlab for mathmatics chazhi function

duffing方程的混沌判别中使用到了庞加莱截面，即多维相空间中适当选取一截面 ，此截面不与轨线相切，不包含轨线，且便于观察系统的运动特征变化.(use Poincare chaotic duffing equation discriminant, multi-dimensional phase space appropriate to select a cross-section, this section is not tangent to the trajectory does not contain the rail line, and easy motion characteristics of the observed system changes.)

Impedance Spectroscopy

本程序为非负矩阵分解，matlab程序。输入为要分解的矩阵和端元数，输出为分解的结果(this program is suitable for NMF .the input data is the matrix to be decomposed and the number of endmember.output is the result)

Crash course in Matlab

theory of all matlab codes for basic leaners

遗传算法代码，matlab写的，适合初学者学习。(Genetic algorithm code, matlab written for beginners to learn.)