ex3

说明：  人工神经网络BP算法的MATLAB实现--源代码(Artificial neural network BP algorithm MATLAB implementation- the source code)

this is other mass-spring project with matlab gui that get initial values an d solve the motion equation and show wave of the motion

通过matlab绘制MICAPS第四类数据等值线的源代码，并获得等值线的数据结构(By matlab draw contour MICAPS fourth class data source and get the data structure contour)

灰色系统理论是研究解决灰色系统分析、建模、 预测、决策和控制的理论.灰色预测是对灰色系统 所做的预测.目前常用的一些预测方法（如回归分 析等），需要较大的样本.若样本较小，常造成较 大误差，使预测目标失效.灰色预测模型所需建模 信息少，运算方便，建模精度高，在各种预测领 域都有着广泛的应用，是处理小样本预测问题的 有效工具(Grey system theory is the research and solution of grey system analysis, modeling, The theory of prediction, decision - making and control At present, some commonly used prediction methods (such as regression score) If the sample size is small, it often results in a comparison Large error, so that the prediction of the target failure Less information, convenient operation, high modeling accuracy, in a variety of prediction collar Fields are widely used to deal with small sample prediction problems Effective tool)

一维fdtdMATLAB程序，主要用于处理问题电磁场(FdtdMATLAB one-dimensional process, is mainly used to deal with the issue of electromagnetic fields)

随机交织器的matlab实现：通过MC仿真的方法产生随机数(Matlab random interleaver implementation)

2012年全国大学生数学建模竞赛题目--葡萄酒的评价。文件中包含葡萄酒成分数据（Excel文件）、各种数据统计处理的MATLAB函数（已封装好，直接调用），包括：数据预处理、灰色预测、灰色关联度、基于熵权法的模糊综合评价、主成分分析、系统聚类、多元线性回归等程序。(Wines Evaluation from the title of 2012 National Undergraduate Mathematical ModelingContest. The file includes many MATLAB codes about statistical analysis of data.For example: Principal component analysis Grey Relational Analysis Fuzzy Comprehensive Evaluation Based on Entropy Method System Clustering Grey Prediction Multiple linear regression and so on. We can call them directly.)

这个是利用MATLAB实现的KNN算法的实现(This is achieved using MATLAB algorithm to achieve KNN)

调用line（）函数与plot（）函数，运用for循环命令。 线宽5，线条颜色为黑色，填充颜色与线条颜色不同。 坐标轴取等长刻度，标题：正五角星，x轴、y轴加上标注。(Calling line () function with the plot () function, use a for loop command. 5 width, line color is black, filled with color and line color is different. Take the long axis scale, etc., Title: Positive pentagram, x-axis, y-axis plus mark.)

双馈感应风力发电机组传动链系统simulink仿真模型...................(wind turbine drive chain system simulink model........)