leach

利用MATLAB解决偏微分方程中的一些问题,如插值求解(Partial Differential Equations using MATLAB to solve some problems, such as interpolation to solve)

说明：  基本的直方图绘制方法： （1）直方图的绘制； （2）直方图均衡化(The basic method of drawing histogram: (1) Draw the histogram (2) Histogram equalization)

说明：  快速傅里叶变换 (FFT) 实现，给定信号x(t)=sin(2πf0t)，f0=50Hz，对x(t)以fs=200Hz进行抽样，抽样点数为N=16。编写程序实现对x(n)的快速傅里叶变换，求得相应的X(K)。(Fast Fourier Transform (FFT) to achieve a given signal x (t) = sin (2πf0t), f0 = 50Hz, for x (t) with fs = 200Hz sampling, the sampling points is N = 16. Procedures for the preparation of x (n) of the fast Fourier transform, obtained by the corresponding X (K).)

lorenz系统的相图程序,简单数学模型中的混沌现象 (lorenz system phase diagram of the program, a simple mathematical model of Chaos)

实现QPSK调制,很好的显示了调制后的波形，且可通过改变相应参数来变换图形(Realize QPSK modulation, good show the modulated waveform, and by changing the corresponding parameter to transform graphics)

通过游程编码的方式，进行图像信息隐藏，此方法适用于二值图像的隐藏(Length coding by the way the image information hiding, this method is suitable for binary image of the hidden)

This project is used to convert a file to array code .

MachineLearning Classifican KNN-Based Clustering for Improving Social Recommender Systems

说明：  matlab乘子法，用于解带有约束的目标优化问题，约束条件既可以是线性又可以是非线性(matlab multiplier optimize，)

This Matlab source code is for paper ATTEMPT for wireless sensor networks.