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共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)

目前比较前沿的数值渐近法（Asymptotic Numerical Method）求解弹簧平衡路径算例，直接运行可得计算结果图象。(an example of Asymptotic Numerical Method solving two-dimension spring problem)

To support wireless communication : MIMO

Calc_Azimuth_Elevation distance

electronic,electrical circut modeing using Matlab book

说明：  基于SVM的文本无关说话人识别算法研究，本文在最后用Matlab程序实现了一个基于支持向量机的说话人识别系统试验平台。并根据对参试者进行的大量身份测试试验，总结系统的各方面性能和分析存在的问题，为进一步研究提供了方向和宝贵的经验。 (SVM-based text independent speaker recognition algorithm, the paper used in the final implementation of a Matlab program based on support vector machine speaker recognition system test platform. And tested based on the identity of those who carried out a large number of test trials, summed up the system performance and analysis of all aspects of the problems, provide a direction for further research and valuable experience.)

说明：  该文件包括了连续周期信号的单边带及双边带频谱分析的所有源代码及仿真波形，设计完整，而且符合要求。(The document includes a continuous cycle, and bilateral single-sideband signal with a spectral analysis of all source code and simulation waveforms, design integrity, but also meet the requirement.)

newton raphson MATLAB PROGRAMME

无刷直流电机调速系统仿真模型，霍尔传感器提供位置信号，调压调速(Brushless DC motor speed control system simulation model)

数字图像处理中所用的灰度加权法，matlab源代码，用于处理图像求质心点坐标(Digital image processing method used in the weighted gray, matlab source code, image processing is used to find the centroid point coordinates)