zikong

It is the document and code of parallel computing in matlab.

说明：  自己编的四节龙格琨塔程序，希望对你有所帮助(Own four of the Runge-Kun tower procedures, and they hope to help you)

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)

说明：  2机5节点电力系统潮流计算算例，可以作为学习潮流计算的案例(The power flow calculation example of 2-machine 5-bus power system can be used as a case of learning power flow calculation)

用matlab仿真来实现lms算法和NLMS算法(lms algorithm)

Arithmetic decoding of a file

matlab一般常用功能都有详细的源码，可供初识matlab的学者使用(matlab commonly used functions are detailed source for scholars to use matlab acquaintance)

用matlab实现巴特沃斯高通和低通滤波滤波，对图像进行相应的处理(Using matlab to achieve Butterworth high-pass and low-pass filtering filtering, the image corresponding treatment)

地球物理正演 重磁多边形模型正演，计算园的数据(Forward gravity and magnetic geophysical polygon forward modeling, data calculation park)

fir滤波器，用matlab，dsp和quartus2设计的(fir filter, using Matlab, dsp design and quartus2)