中文说明：包括回归分析和概率统计，加入重复控制，包括数据分析、绘图等等,部分实现了追踪测速迭代松弛算法，数据模型归一化，模态振动，对于初学者具有参考意义。
English Description：
Including regression analysis and the probability statistics, the repetitive control is introduced, including data analysis, drawing, and so on, in part to achieve the tracking velocimetry iterative relaxation algorithm, data normalization model, vibration mode, for beginners has reference significance.