centriod

说明：  黄华江所著《实用化工计算机模拟—MATLAB在化学工程中的应用》的所有例子源程序(Huang Jiang s book practical computer simulation of chemical-MATLAB in chemical engineering, the source code of all examples)

说明：  40KHZ局部放电超声信号源模拟仿真，四种衰减形式：单指数、单指数振荡、双指数、双指数衰减震荡(Simulation of 40KHz PD ultrasonic signal source, four attenuation forms: single index, single index oscillation, double index, double index attenuation oscillation)

层次分析法的matlab程序，属于系统工程的安全评价(AHP matlab program, part of systems engineering security assessment)

this is good code.for our learing.

灰色预测gm（1-1）算法，用于短期时间序列预测，包含残差检验等各种必要检验(Gray predicted all the necessary inspection gm (1-1) algorithm for short-term time series prediction, including residuals inspection)

steganography in wav files

说明：  matlab牛顿迭代方法,上机试验对于初学者又很大的帮助,简单易懂(Matlab Newton iterative method, the pilot on the plane for beginners also very helpful and easily understood)

mathematica里面实现仿真的蒲丰投针实验(buffon experiment on mathematica)

介绍了一宽带的数字锁相环的实现方法，欢迎大家踊跃下载 (Introduction of a broadband digital phase-locked loop method, enthusiastically welcomed the U.S. Download)

MATLAB课件 包含了基本和最常用的应用函数，可以在短时间内帮你学会使用MATLAB(MATLAB LESSONS the basic functions you may use mostly )