净面积计算工具

该程序实现PCA的分类功能，程序后面有详细的解释，经检测，程序能够跑通(The program realizes the classification function of PCA. The program is explained in detail later. After testing, the program can run through.)

经纬度坐标转换为SIN投影坐标，在处理SIN投影的遥感图像时可以用(The the SIN projection coordinates into latitude and longitude coordinates, in the processing of the SIN projection remote sensing image can be used)

Shapefile C是一个C库，用于读写ESRI形状文件和相关的DBF文件。支持所有的几何形状。Shapelib 被广泛用于商业和自由项目。Shapelib 包含命令行工具，用于转储、求子集、剪切、旋转、缩放、和重新生成形状文件。 (SHAPEFILES C is a C library for reading and writing ESRI shape files and documents related to the DBF. Support all of the geometry. Shapelib been widely used in commercial and free items. Shapelib includes a command line tool for the dump, in her collection, shear, rotate, zoom, and was re-shape paper.)

个人随机编写的，关于matlab模拟随机时滞微分方程的程序(Personal random programming, matlab simulation of stochastic delay differential equations procedures)

说明：  使用PYTHON配合PYQT5实现界面编程，实现了类似余串口调试助手的界面基本操作(Use PYTHON with PYQT5 to realize interface programming, and realize the basic operation of interface similar to Yu serial debugging assistant)

Tutorial on Network Programming with Python，python网络编程教程，简单介绍python语言环境下的网络编程api(Tutorial on Network Programming with Python, python network programming tutorial)

具体介绍了但交叉口多交叉口的控制方式，采用vissim仿真，对于新手具有借鉴意义(The control strategy model built by SIMULINK can be used for reference by novices.)

通过Python扩展ArcGIS应用的资料，附有文档和相关练习，非常适合个层次的人员学习使用。(Extending ArcGIS With Python， Esri China，ArcGIS，Python)

用matalb产生logisitc，tent，切比雪夫，改进型logistic四种混沌序列，同时产生Zadoff-Chu序列，并绘图比较几种序列间的自相关以及互相关性能。(Produced by matalb logisitc, tent, Chebyshev, improved logistic four kinds of chaotic sequences generated simultaneously Zadoff-Chu sequence, and drawing compare several sequences autocorrelation and cross-correlation properties.)

可以进行金属材料断裂模拟，经试验验证该模型的正确性(the damage programme for steel in Abaqus)