attachments-(1)

生成指定概率分布的随机数，可用于数学与金融的随机分析(Specify the probability distribution of randomly generated number, can be used for the stochastic analysis and financial mathematics)

利用维格纳方法实现对数字信号进行时频分析处理的功能(Wigner method implementation using digital signal processing functions time-frequency analysis)

data mining k nearest neighbour

太阳黑子是人类长久以来感兴趣的问题。此处运用matlab代码对太阳黑子的记录的数据进行处理，希望能提供帮助( Using archival records,astronomers have applied Wolfer s rule to determine sunspot activity back to the year 1700. Today the sunspot index is measured by many astronomers and the worldwide distribution of the data is coordinated by the Solar Influences Data Center at the Royal Observatory of Belgium. The text file sunspot.dat in the matlab/demos directory has two columns of numbers. The first column is the years from 1700 to 1987 and the second column is the average Wolfer sunspot number for each year.)

Ensure that Number.MAX_VALUE and Number.MIN_VALUE are extreme.

Matlab控制系统与应用实例源代码，很全的程序哦(Matlab control system)

用matlab代码实现国歌伴奏，其中还有不足，请大家多多指教。（借鉴）(Matlab code the national anthem accompaniment, which is still not enough, please exhibitions. (For reference))

模型预测控制 多输入多输出 2自由度汽车模型 多目标有约束优化问题(model predictive control with 2dof vehicle model with constraints optimization problem)

显示图像，估计图像背景，直方图均衡化，二值化等基本操作(show figures,estimate background of figure)

matlab在工程数学中的应用，适合初学者学习(matlab application of mathematics in engineering, suitable for beginners to learn)