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主成分分析方法在各个变量之间相关关系研究的基础上，用较少的新变量代替原来较多的变量，而且使这些较少的新变量尽可能多地保留原来较多的变量所反映的信息一种方法。(Principal Component Analysis in the relationship between the various variables on the basis of the study, with fewer new variables replace the original more variable, but made them less a new variable as much as possible to retain the original variables that reflect more information methods)

welded beam design optimizition benchmark problem (test problem) in matlab

matlab使用过程中经常会使用到的常用数值算法。(often use to matlab the process of using the numerical algorithm.)

卡尔曼 滤波 去除噪声 测定俯仰角 方位角 距离 等等(kalman filter)

说明：  salam man hamid hastam in file matlab

用matlab画频谱图的程序 包括多种波形的频谱(Spectrum using matlab drawing program includes a variety of wave spectrum)

在MATLAB中用复合辛普森公式求函数的二重数值积分。(realizing double integral by Complex Simpsons Formula in MATLAB)

monto carlo optimization code

MATLAB概率与数理统计分析（第2版）》以概率与数理统计的基本原理为线索，以matlab为辅助条件，分别介绍了概率与数理统计概述、统计估计、假设检验、方差分析、回归分析、正交试验分析、聚类分析、判别分析和多元数据相关分析等内容，理论与实践相结合，向读者演示了matlab在数理统计中的应用。 　　("MATLAB Probability and Mathematical Statistics Analysis (2nd edition)" is based on the MATLAB r2011 a, on the basis of the 1st edition, further introduced the MATLAB probability and mathematical statistics analysis. "MATLAB Probability and Mathematical Statistics Analysis (2nd Edition)" takes the basic principles of probability and mathematical statistics as the clue, and takes MATLAB as the auxiliary condition. It respectively introduces the outline of probability and mathematical statistics, statistical estimation, hypothesis test, variance analysis, regression analysis, orthogonal test analysis, cluster analysis, discriminant analysis and multivariate data. The application of MATLAB in mathematical statistics is demonstrated to the readers by combining theory with practice.)

轨迹仿真，包含CV、CA、Single、当前、恒转弯速率、转弯模型(Simulate the track, using moving models such as CV、CA、Single、Current、Constant turn rate、turn model)