frft2

表示相空间相邻轨迹的平均指数发散率的数值特征。又称李雅普诺夫特征指数，是用于识别混沌运动若干数值的特征之一。(Denotes the numerical characteristics of the average exponential divergence of adjacent trajectories. Also known as the lyapunov characteristic index, is one of the characteristics used to identify some numerical values of chaotic motion.)

MATLAB谐波叠加法模拟风速时程,水平向Kaimal谱密度表达式, 竖直向L-P谱密度表达式(MATLAB harmonic superposition method for simulation of wind speed time history)

说明：  选取四个点，自动判断是否在一个平面上。同一个平面上。则绘制一个多边形。不在一个平面，则以前三个点为底面，构成一个椎体。支持Move等转换命令，存图与开图，实现Jig交互绘制等。(Four points are selected to automatically determine whether or not they are on a plane. On the same plane. Draw a polygon. If it is not in a plane, the first three points are at the bottom, forming a vertebral body. Support Move and other conversion commands, save and open maps, Jig interactive rendering, etc.)

说明：  电力系统潮流计算，可适用任意规模输入数据，以九节点系统为例(take nine-node power system for example)

说明：  Matlab做有限元分析，有静态、动态、非线性分析(Matlab finite element analysis, static, dynamic, nonlinear analysis)

房源管理系统 很好的一个参考资料 然后通过登录去管理好这些客源信息。(Housing management system, the code is the housing system of a B/S system, a good reference)

利用netcd库 python语言读取nc气象文件(Using Python language of netcd library to read NC meteorological files)

说明：  为了感谢惠俊英老师的谆谆教诲，特为好奇诸君再奉上水声物理--海洋传播声场模拟的一份武林秘籍！ 当好奇诸君阅毕此卷，又轻松跑完9份作业（9路招式），即悟简正波海洋声场传播模型之能耐！ KRAKEN与AcousticsToolbox遵照GNU公共许可证进行分发。感谢Michael B. Porter对KRAKEN的原创。也感谢由Free Software凝聚起来的自由科学家社区。 本秘籍适合大三以上和非水声物理专业同志们的快速参学。 吴开明 2018.12(The KRAKEN model was initially developed as a research code to evaluate new algorithms. As such it required numerous modifications to be usable as a production code. This work was begun at the Naval Ocean Systems Center and continued at the Naval Research Laboratory in support of the research on matched-field processing.)

GPS TOOLKIT, 非常有用的开源GPS工具包(gps toolkit, an very using and reusable opensource gps develop toolkit)

78K0R/Kx3 16位微控制器UART工程代码,很有借鉴意义(78K0R/Kx3 16-bit microcontroller UART engineering codes, meaning a very useful reference)