通俗易懂< 路由与交换>>，也许有些人需要编写关于路由与交换的程序，这个或许有帮助...

这个程序可以计算给定点处的小区信号范围覆盖。-is program computes a map of visibility from a selected point on a topography. It has been written to help the search for radio relay best location. Because it considers only direct line of sight, it gives a good estimation for possible radio link for short distances only (less than 10 km), neglecting curvature of the Earth, Fresnel zone and atmospheric refraction on radio waves propagation. The program computes the relative elevation angle of the mask for each point (the angle is null or negative if the point is visible). The function needs a digital elevation model Z and associated (X,Y) vectors or matrices of coordinates (same unit as Z), position of the point (X0,Y0), the antenna height H0 (for instance 4 m), and the hypothetic antenna height Ha on each topography points (for instance 3 m). When no output argument is given, the function plots a map of the results (color map of mask angles, and blank for visible points, see example screenshot). The s

Alpha-data 的 采集卡，主要是Gigabit Ethernet ，LVDS ， PCI/PCI-X 的VHDL 程序 -Alpha-data acquisition card, is Gigabit Ethernet, LVDS, PCI/PCI-X of the VHDL program

演示把几个文件打包成一个文件并且释放-demo packages combine several documents into one document and release

介绍了如何用visualC#调用Excel表并且如何加载数据到Excel里-Describes how to call the Excel sheet and visualC# how to load data into Excel where

asp.net编写的程序。实现用户的登陆，密码或用户名错误将不能登陆。-asp.net write programs. To achieve the user" s login, password or user name of the error will not be landing.

无网格伽辽金法中用到的数值积分，此程序，提供多点高斯积分，可任意选择！-element-free Galerkin method used in the numerical integration of this process, provide more Gaussian integral, can be arbitrary choice.

基于Microsoft Visual Basic 6.0 的一个关于数字的小游戏程序-Based on Microsoft Visual Basic 6.0 on the figure of a small game program

此书主要是讲Visual C++图形编程技巧与实例

我不认为这是偶然的；

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