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数值解与理论解对比可知，四阶龙格-库塔法的精度已经很高，用它来解一般常微分方程已经足够了。(Numerical comparison shows that the theoretical solutions, Runge- Kutta method has high accuracy, and use it to solve ordinary differential equations general enough.)

写的MATLAB程序实现傅里叶变换大家可与参考一下(MATLAB program written by Fourier transform we can refer to)

当信噪比较大时，采用广义最小二乘法可能会出现多个局部收敛点，解决这个问题的方法可用多级最小二乘法，一般来说多级最小二乘法包含三级辨识过程。利用输入输出数据，通过多级最小二乘法，可分别求的辅助模型，过程模型和噪声模型的参数估计值。在高噪声的情况下，多级最小二乘法明显优于广义最小二乘法，其收敛点唯一。(When the signal noise ratio (SNR), and by use of the generalized least squares method may appear more local convergence point, the way of solving this problem can be used multistage least squares method, and generally multistage least squares method includes three identification process. Using input/output data, through the multistage least squares, respectively for the auxiliary model, process model and noise model parameter estimation. In the high noise, multistage least squares method is obviously superior to the generalized least squares method, and its convergence point only.)

这里有100个MATLAB例子，希望对大家有帮助(There are 100 MATLAB example, we want to help)

ISODATA算法，模式识别课程的一个作业(ISODATA algorithm, a pattern recognition programs work)

matlab 编写的下雪程序，很适合在冬天看雪花落下过程(Matlab prepared by the snow program, it is suitable in the winter to see snow falling process)

说明：  本程序实现多模态故障检测与故障诊断，用的方法是LPP_GMM_FJ，GMM是用的FJ算法，效果很好(This procedure realize multimodal, fault detection and fault diagnosis method is LPP_GMM_FJ, GMM FJ algorithm is used, the effect is very good )

BP 神经网络算例，很好的算例程序，希望对大家有帮助(BP neural network example, the example program, we hope to help)

matlab dsp(1． 利用自相关函数法和周期图法实现随机信号的功率谱估计。 2． 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响

文件中涵盖了三种利用小波变换进行图像去噪的程序(Paper covers three kinds of wavelet transform for image denoising procedures)