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说明：  用matlab实现的一个基于均值聚类算法的图象分割的中心程序(kmeans)

规划问题的matlab文件，规划问题在数学中的应用范围很广，值得一看(Matlab problem of planning documents, the planning problem at math in a very wide range of applications, worth a visit)

compensation of voltage sags and swells

计算层合板刚度，和最先一层失效载荷！程序具有通用性，能够对任意工程弹性常数和几何尺寸的层合板进行刚度和强度分析！非常适合最为哈尔滨工业大学复合材料与工程专业的复合材料力学上机大作业(Laminate stiffness calculation, and the first layer of failure load! Program is versatile, capable of any engineering elastic constants and geometry of laminates for stiffness and strength analysis! Very suitable for most Harbin Institute of Technology composite materials and engineering mechanics of composite materials on the plane big job)

This function used for mapping gray data after equalization with many method into image.

在：1）理想无噪生条件，2）SNR=10dB，3）SNR=20dB，4）两径衰落信 道{0, 0}、{-6dB，-10symbol}条件下，分别产生 1000 个符号的 QPSK、8PSK、 16QAM 星座点， 画出信号序列的星座图， 提交电子版信号产生、 加噪、 显示的*.m 程序和电子版 WORD 报告。 报告要求给出原理描述、 框图和分析说明输出结果。(In: 1) an ideal noiseless Health conditions, 2) SNR = 10dB, 3) SNR = 20dB, 4) two-path fading channel {0, 0}, {-6dB,-10symbol} under conditions generate 1,000 symbols QPSK, 8PSK, 16QAM constellation points, draw constellation signal sequence, submit an electronic version of the signal, noise, display*. m procedures and electronic WORD report. Reporting requirements given Principles, and the analysis shows a block diagram of the output.)

Self-adaption arithmetic to forecast some data like CPI in short terms

数字水印预处理Arnold置乱程序。在水印的嵌入与提取中用来置乱图像。(Digital Watermarking Arnold scrambling pretreatment procedures. In the watermark embedding and extraction of images used to scrambling.)

快速傅里叶变换 可以计算并且仿真出图片等，里面包括三角变换、逆变换等。(Fast Fourier Transform And simulation can be calculated, such as a picture, which includes the triangular transform, inverse transform and so on.)

说明：  《Matlab与C++》这本书的第4章，包含matlab程序和C++程序(&quot Matlab and C++&quot Chapter 4 of this book, including the matlab program and C++ program)