helloworld

本程序可以用来简单求取数据的（rmse）均方根误差(Root Mean Square Error)

这是一个不错的小游戏啊，欢迎大家来下啊，好东西大家一起分享啊 -This is a good little game ah, welcoming everyone to come under ah, good things to share with everyone ah

java编的经典吃豆子游戏，希望会喜欢

mathcad的二阶低通滤波器模型，bode图(Second-order low-pass filter model)

说明：  经典的R/S分析法计算油价收益率的Hurst指数，并有图例展示(Calculation of Hurst Index by Classical R/S Method)

vcard is a program to edit-fix your vcard files

Qt5平台的登录、注册，连接数据库，并鼠标右键实现增、删、改的功能，较为简单。(Qt5 platform login, register, connect to the database, and right click to add, delete and change functions.)

有限差分数值模拟地震记录，绘制正演模拟波前快照。(Seismic wave inverse time migration program can realize the inversion of seismic wave)

说明：  LFM处理雷达信号的仿真,随机产生目标并模拟出雷达回波采集到的目标速度，位置等信息(LFM processes the simulation of the radar signal, generates the target randomly, and simulates the target velocity, position, and other information collected by radar echo)

说明：  lmp multi area