双约束重力模型(1.0)

图书管理软件,基本功能已具备，做毕业设计所使用-library management software, the basic functions have been met, so the use of graduate design

说明：  SQL语言简明教程 一个学习SQL语言不错的教程 为PDF文件格式 讲述了SQL语言的概貌特点、SQL的数据查询数据定义数据操纵数据控制功能。简明扼要，适合初学数据库者学习、参考。(Concise Guide to the SQL language SQL language learning a good guide to the PDF file format on the SQL language features of a picture, the data query SQL Data Definition Data Control data manipulation functions. Concise, database suitable for beginners learning, reference.)

模型预测控制的工具箱的全解，非常详细，对初学者十分有用，希望能帮助大家。(Full Solution Model Predictive Control Toolbox, very detailed, very useful for beginners, hoping to help you.)

说明：  STM32初级教程16课时，掌握软件技巧，实现快速入门开发，(STM32 Primary Course, Quick Start Development.)

高版本wtl库,用于喜欢WTL的用户-high version for Windows Template Library, for users like WTL

用C#.net编写的数独小游戏，界面美观，可随机生成游戏和求解。(With C#. Net Sudoku game written in beautiful interface, can be randomly generated games and solving.)

两篇关于模型简化的博士论文，对于研究模型简化方面的很有用。(2 on a simplified model of doctoral thesis research model for the simplification of very useful.)

该代码可以模拟特定尺寸超音速斜切喷管模拟，若修改其中尺寸参数，可以达到模拟任何超音速流动。(The code can simulate the supersonic oblique-cut nozzle with a specific size. If the size parameters are modified, any supersonic flow can be simulated.)

进行 面板数据VAR分析，连玉君老师论文中用到的，stata 代码(The VAR analysis of panel data, and the stata code used in the thesis of the teacher)

说明：  LoRa PCB及原理图,供软件编写人员阅读,有助于编程.(LoRa's PcbDOC and SchDOC)