Rank-Order-Distance-based-clustering

an introduction to information retrieval, great book for search engine in English

基于python的Gasvm程序，编写规范，容易理解，非常好用(Gasvm program based on python is easy to understand and easy to use.)

INS Matlab 仿真程序，用于惯性导航系统(INS Matlab simulation program, used for inertial navigation system)

A minimal but extreme fast B+ tree indexing structure demo for billions of key-value storage

Hypertext makup language example.

读取一个文本文件（英文，ASCII编码），对出现的单词次数进行统计，并按照出现次数从低到高排序，输出到一个文本文件中（每行一个单词信息，格式：单词 出现次数）。采用二叉树结构存储，中序遍历，快速排序。(Reads a text file (English, ASCII encoding), the number of occurrences of the word statistics, and in accordance with the number of occurrences of the sort low to high, output to a text file (one word per line message format: word occurrences). Binary tree structure stored in preorder, quick sort.)

说明：  采用衰减曲线法计算系统P、PI、PID控制器参数，绘制整定后系统的单位阶跃响应曲线。(The attenuation curve method is used to calculate the parameters of P, PI and PID controllers, and the unit step response curve of the system after setting is drawn.)

实现电力系统 101 协议，可以在严格按照 country 的网络要求，满足电力系统的要求，是初学者还是开发商 importantreference。

netlink通信模板，用于和内核驱动进行通信(netlink communication module)

JQuery waterfall flow arrangement style code is a jQuery waterfall flow code based on gridify. JS plug-in