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共轭梯度法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。(Conjugate gradient method is between the steepest descent method and Newton method between a method that only use the first derivative information, but the steepest descent method to overcome the disadvantage of slow convergence, but also avoids the need to store and calculate Newton Hesse matrix and the shortcomings of the inverse, conjugate gradient method is not only linear equations to solve large-scale one of the most useful, large-scale nonlinear optimization solution is also the most efficient algorithms.)

麻省理工大学的经典matlab教程，适合学习(Massachusetts Institute of Technology' s classic matlab tutorial for learning)

Matlab PCA主成分分析 一个比较好的matlab代码，非常有用(Matlab PCA PCA matlab code is a relatively good, very useful)

魏凤英编著的《现代气候统计诊断预测技术》一书中有关于用Mann-Kendall法检测1900～1990年上海年平均气温序列突变的例子(Wei Fengying compiled the " Diagnostic Statistical prediction of modern climate," a book about the Mann-Kendall detected by 1900 the average temperature in Shanghai in 1990 an example of the mutations)

MATLAB Simulation仿真文件，齿轮传动的仿真，使用SimMechanics工具箱(MATLAB Simulation simulation files, gear simulation, using SimMechanics Toolbox)

高等光学仿真源程序，有助于了解光纤光学，主要是光在光纤中传播的模式分布(Higher optical simulation program to help understand fiber optics, light propagation in the fiber mode distribution)

蒙特卡洛模拟法是当系统中各个单元的可靠性特征量已知，但系统的可靠性过于复杂，难以建立可靠性预计的精确数学模型或模型太复杂而不便应用则可用随机模拟法近似计算出系统可靠性的预计值。随着模拟次数的增多，其预计精度也逐渐增高。由于需要大量反复的计算，一般均用计算机来完成。本文件用来求解医院排队论问题(Monte Carlo simulation when the system reliability characteristics of each unit volume is known, but the reliability of the system is too complicated, difficult to establish accurate mathematical model of reliability prediction models are too complex or inconvenient applications are available stochastic simulation method to approximate calculation the expected value of system reliability. With the increase in simulation times, which is expected to gradually increase precision. As the need for a large number of repeated calculations, generally using the computer to complete. This document is used to solve the problem of queuing theory Hospital)

Performance and Cost Evaluation of IEEE 802.11g and 802.3i Protocols for Network Connectivity at a University Campus using OPNET Simulation

another phase locked example for matlab

Wimax performance analysis