granger_cause

正方形ABCD的4个顶点各有1人.在某一时刻,4人同时出发以匀速v=10m/s按顺时针方向追逐下一人,如果他们始终保持对准目标,则最终按螺旋状曲线于中心点O.试求出这种情况下每个人的行进轨迹(Four vertices of square ABCD each one. At a time, 4 people starting at a uniform v = 10m/s in a clockwise direction chasing the next person, if they remain at the target, then press the spiral curve in the final Find the center point O. This road track of each person)

求信号的时频熵，对非平稳信号进行emd分解后，求时频熵，得出其故障特征(For the signal s time-frequency entropy, the nonstationary signals are EMD decomposition, and time-frequency entropy, the fault feature)

三维 方程组matlab牛顿解法 计算方法(Newton solution of three-dimensional equations matlab calculation)

在matlab环境下面编程，最好使用2012版本及其以上，完成利用matlab软件提供的图像处理函数来完成图像匹配，3D重建的工作。最后的效果图很好，由于是利用matlab自带的图片，所以压缩文件中无图片，直接打开m文件就可以运行！(Below programming in matlab environment, it is best to use 2012 version and above, using matlab software provides complete image processing function to complete the image matching, 3D reconstruction work. The final renderings good, as is the use of matlab comes with a picture, so the compressed file without pictures, you can directly open the m-file to run!)

线性规划 用于最优化算法中的线性规划最优问题(Linear programming optimization algorithm for linear programming optimization problem)

说明：  关于Z变换的各种例子 帮助我们较为简单的学习 取得较快的进步(About Z transform of a variety of examples to help us study a relatively simple rapid progress)

Nearest neighbors is a semi deconvolution algorithm. I m a newbie in matlab but I hope this helps somebody :)

In this directory, we can find the eleven files. The relationship between file name and the number of program written in the book is shown in as follows.

Romberg integration algorithm: a method for integrating mathematic functions, in MATLAB.

matlab实现pcm编码，是信号模数转换的编码方式的实现(matlab coding to achieve pcm is the signal analog-digital conversion of the realization of the encoding)