在 c + + 中的 SHA1 算法

应用背景On the Design of ZF and MMSE Tomlinson-Harashima Precoding in Multiuser MIMO Amplify-and-Forward Relay System,it is main described the mimo system in the multi-user  scenario.the main precoding algrithm is combined the zf precoding and the MMSE precoding.关键技术we design a zero-forcing (ZF) Tomlinson-Harashima precoding (THP) and a minimum mean square error (MMSE) THP for multiuser MIMO relay system with direct link. Based on these precoding structures, we propose the optimal combining weights of the ZF THP and the MMSE THP in half duplex relay system, and the sub-optimal weights of MMSE THP to reduce feedback channel state information(CSI). Through the Monte Carlo simulation, we verify that the optimal weights combining method outperforms the constant weights combining method. In addition, we confirm that the performance of the sub-optimal weights combining method is&

ChiSquaredAttributeEval 算法源代码，可以用来做特征处理，在eclipse上编译，也可以调用这个算法，达到数据预处理的目的

面对 演示；识别方法

字符串数组排序-Char array sort

密码，防止未经授权的访问，传递文字，防止未经授权的访问

几种常用排序编码方法，冒泡等方法                                                  

高精度计算C++类的算法-precision calculation algorithm C

这是粒子群算法的一个源程序，程序很简单，已经运行过了，可以用，对初学者是个不错的程序-This is a source particle swarm optimization algorithm, the program is very simple, has been running over us, we can use, for beginners is a good program

一些矩阵运算的C代码实现：矩阵一般运算，以及求逆，QR分解，householder变化，LDU, LU分解-some matrix calculation of C code to achieve : Matrix general computing, and inversion, QR decomposition, the householder changes, LDU, LU decomposition, etc.

在这个程序中，证明具有难度声明解决了考拉兹猜想。为任何整数，不管它是什么，会最终导致一个人。它通常被称为合一的任何整数。此程序所示的此属性的一个整数。