输入含数字的式子（可以用多层括号嵌套），本程序给出结果。

Universal Serial Bus (USB) is a communications architecture that gives a personal computer (PC) the ability to interconnect a variety of devices using a simple four- wire cable. The USB is actually a two-wire serial communication link that runs at either 1.5 or 12 megabits per second (mbs). USB protocols can configure devices at startup or when they are plugged in at run time. These devices are broken into various device classes. Each device class defines the common behavior and protocols for devices that serve similar functions. Some examples of USB device classes are shown in the following table

用KALMAN滤波方法的雷达检测轮船、飞机、导弹等的航迹分析，源程序分析。-Kalman filtering method using the estimated target track of the Matlab source

C in A Nutshell Learning a language--any language--involves a process wherein you learn to rely less and less on instruction and more increasingly on the aspects of the language you ve mastered. Whether you re learning French, Java, or C, at some point you ll set aside the tutorial and attempt to converse on your own. It s not necessary to know every subtle facet of French in order to speak it well, especially if there s a good dictionary available. Likewise, C programmers don t need to memorize every detail of C in order to write good programs. What they need instead is a reliable, comprehensive reference that they can keep nearby. C in a Nutshell is that reference.

PHLILPS RC500 读写函数原代码 -PHLILPS RC500 original code reader function

用于建网站的礼花背景 是用ＨＴＭＬ语言编的-site for the construction of the fireworks background is part of the HTML language

Multichannel blind seismic deconvolution using dynamic programming。-Multichannel blind seismic deconvolution using dynamic programming.

这是一个俄罗斯方块小游戏的程序，可能不是很好，希望大家见谅-This is a game of Tetris procedures, may not be very good, hope that we will be forgiven! !

本文介绍了在自由口通信模式下，用计算机读写S7-200 PLC存储区内相邻的多个字 节数据的通信程序设计方法，程序设计中采用了多种可靠性措施。 -In this paper, in a free port communication mode, using the computer to read and write S7-200 PLC storage area adjacent to a number of bytes of data communication program design methods, procedures designed to use a variety of reliability measures.

DSP开发工具Code Compile Studio(CCS)开发数字信号处理程序DSP――实现IIR滤波器，IIR高通、低通、带通。-With DSP tool Code Compile Studio(CCS),develop a program for DSP,which it can be a highpass,lowpass,bandpass.

A tutorial on pointers and arrays in C