一些经常用到的C算法程序

应用背景 随着4G-LTE技术的逐步发展，人们对通信质量和通信速度的要求越来越高，MIMO技术可实现多输入多输出，增大系统数据的吞吐量。 关键技术该资源为MIMO-OFDM通信系统模型，采用STBC编码进行预编码，在MATLAB下搭建模型，由训练序列获得信道信息来进行接收端的译码工作。

计算电磁学中fdtd方法的源代码，三维计算例子-Computational electromagnetics methods in the source code fdtd

本代码是《计算机常用数值计算算法与程序 C++版》一书的配套矩阵运算代码，这些C++程序已经在Virsual C++ 6.0环境下通过。注意，在VC++ 6.0中设置好路径，特别include目录(文件夹)的路径，否则在编译时会出现找不到头文件的错误，使编译无法正常进行。-the code is "commonly used computer numerical algorithms and procedures C version," a book supporting matrix calculation code, these procedures have been in C C 6.0 Virsual environment through. The attention of the VC 6.0 installed path, in particular include directory (folder) path, otherwise there will be compiled header files could not find the mistakes and the compiler not normal.

vb编写关于MD5码生成的程序，主要用于MD5码的生成。经测试没有什么错误，可以正常使用。可以生成短MD5和长MD5两种码。

这是一个可以用来从一段文本文档中提出单词，并 对单词按字母进行排序，并显示出现次数的代码！希望能有用！

应用背景简化了map的功能，应用于高效的查询；不维护迭代器等功能，提供数据从启动到停止生命周期内的快速查询，不提供删除数据，只提供清理数据；经过测试千万数据的查找比map快5倍关键技术根据红黑树的算法，实现了key、value存储map，完全按照平衡树的原理，实现了快速添加和查找功能

C语言必背18个经典程序.pdf C语言难点及分析.pdf 本压缩包有18个经典的C语言程序以及C语言难点及分析，主要涉及变量的作用域和存储类别、函数、数组、字符串、指针、文件、链表等，希望对大家有所帮助。谢谢！    

详细表述了分数阶傅立叶变换的离散实现，将现有的算法进行比较。-In this note we make a critical comparison of some matlab programs for the digital computation of the fractional Fourier transform that are freely available and we describe our own implementation that lters the best out of the existing ones. Two types of transforms are considered: First the fast approximate fractional Fourier transform algorithm for which two algorithms are available. The method is described in H.M. Ozaktas, M.A. Kutay, and G. Bozdagi. Digital computation of the fractional Fourier transform. IEEE Trans. Signal Process., 44:2141{2150, 1996. There are two implementations: one is written by A.M. Kutay the other is part of package written by J. O Neill. Secondly the discrete fractional Fourier transform algorithm described in the master thesis C . Candan. The discrete fractional Fourier transform, Bilkent Univ., 1998 and an algorithm described by S.C. Pei, M.H. Yeh, and C.C Tseng: Digital fractional Fourier transform base

几个值得学习的C源程序-several worth learning C source

计算方法复化求积公式-Minute calculation method of quadrature formula