12.1

说明：  差分整合移动平均自回归模型，又称整合移动平均自回归模型（移动也可称作滑动），是时间序列预测分析方法之一。(Differential integrated moving average autoregressive model, also known as integrated moving average autoregressive model (moving also known as sliding), is one of the time series prediction and analysis methods.)

说明：  core analyzer 2.16 source

大数计算，调用medlts库，进行计算大数(MELTS software is now open source! Go to Gitlab for details. Try the MELTS web services. rhyolite-MELTS not working correctly after an upgrade? See this support document. Download the MELTS for Excel workbook. Get MagmaSat and MagmaSatApp (iPad) from the . Download rhyolite-MELTS (containing the new H2O-CO2 fluid saturation model) and pMELTS. Download the updated pMELTS and rhyolite-MELTS for Ubuntu 14.04 and RedHat 6.7 (32- and 64-bit). Visit magmasource.caltech.edu (alphaMELTS).)

IOCP的网络模型，C++写的,需要的同学拿去吧。

说明：  autocad插件，批量注记多边形边长，一键调整字体高度(Autocad plug-in, batch note polygon edge length, one key to adjust font height)

使用SQL语句对数据库进行通用操作，使用DataGrid控件显示，VC++经典编程学习源码，很好的参考资料。(Use the SQL statement to the general operation of the database, use the DataGrid control to display, VC++ classic learning programming source code, a good reference.)

网上书店 JSP的网上书店的源代码 非本人编写 转载的-Online bookstore online bookstore JSP source code reproduced in the preparation of non-I

坐标转换加上示例坐标文件，代码可结合坐标转换公式进行学习(Coordinate conversion plus sample coordinate file, the code can be combined with coordinate conversion formula for learning)

DOS版和WINDOWS版电子辞典仿真版(DOS version and the WINDOWS version of electronic dictionary simulation version)

基于VC++的一个标尺小程序，程序用的是vs2010(A ruler program based on VC++, which uses VS2010)