一个计算器的小程序

巧用C8051F410的PCA实现超声波测距(Using the PCA to achieve ultrasonic ranging C8051F410)

nokia5110源码加仿真测试,初始化液晶，按键测试静态动态显示(nokia5110 source plus simulation test, initialize the LCD, keypad test static dynamic display)

文件对比用软件，用于单个文件之间对比，代码对比，多个文件对比等(beyond compare is a useful software, which can be helpful for you to compare two file and find the difference between them)

运用vc开发的界面象棋游戏,主要运用基本的vc 函数编写.可帮助vc朋友运用算法及函数调用,进一步理解vc的机理.(use vc development of the interface chess games, primarily using basic function vc prepared. Friends can help vc used algorithm and function call, vc further understand the mechanism.)

编辑

基于合众达公司DSP开发板SEED_DEC28335的例程，全部是结果检验之后的例程，希望对各位兄弟有用。(DSP-based development board of the company,SEED_DEC28335 routines, after all the routine test results, I hope useful to you brother.)

可实现智能家居基本控制，灯、热水器、语音识别(It can realize basic control of smart home, lamp, water heater and speech recognition.)

增加了VB，CB，VC,Delphi的演示调用程序 解决了叠加时，死机的情况，文字，图片可以同时叠加 支持神龙5代卡、神龙新一代、神龙新二代卡

 A function to raytrace through a sound speed profile to a given time. Raytrace will trace the path sound will travel through a medium with an  isotropic horizontal sound speed profile and a vertical sound speed  profile given by (zz,cc) from a point (xo,zo) and departing at an angle  theta0 for a time of tt seconds. The path is returned in vectors x and z.  The actual time of travel is returned in t, which may be slightly greater  that tt. The sound speed profile should include a measurement at the  surface (zz = 0). If it does not, the profile will be extended to the  surface by replicating the first measurement there.  In addition to the above, raytrace() handles caustics (when rays bend  through horizontal) and reflections off the surface (z=0) and bottom  which is taken to be at the maximum depth measurement in the soun

说明：  用VC＋＋和SQL开发的一个通信录程序，界面优美，功能齐全，对想学VC数据库编程的或许有所帮助。(with VC++ and SQL development of a communications procedures, beautiful interface, the full range of functions, right, like the VC database programming may be of some help.)