快速排序、归并排序与选择排序平均时间之比较

AES算法加密工具，使用C++语言实现--------------------------------

列主元高斯消去法求解方程-out PCA Gaussian Elimination Solving equations

多目标蝙蝠优化算法是一类寻优精度很高的优化算法，简单实用，且易于实现，算法我已通过运行验证过，很好用，希望能够对大家有所帮助，谢谢！

这个程序分别用二分法，Newton法，弦截法，Newton下山法等算法求解非线性方程-this procedure were used dichotomy, Newton, String interception, Newton downhill law for solving nonlinear equations

OFELI is an object oriented library of C++ classes for development of finite element codes. Its main features are : * Various storage schemes of matrices (dense, sparse, skyline). * Direct methods of solution of linear systems of equations as well as various combinations of iterative solvers and preconditioners. * Shape functions of most "popular" finite elements * Element arrays of most popular problems (Heat Transfer, Fluid Flow, Solid Mechanics, Electromagnetics, ...).-OFELI is an object oriented library of C++ classes for development of finite element codes. Its main features are :* Various storage schemes of matrices (dense, sparse, skyline).* Direct methods of solution of linear systems of equations as well as various combinations of iterative solvers and preconditioners.* Shape functions of most "popular" finite elements* Element arrays of most popular problems (Heat Transfer, Fluid Flow, Solid Mechanics, Electromagnetics, ...).

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。

% Function: [class,type]=dbscan(x,k,Eps) % ------------------------------------------------------------------------- % Aim: % Clustering the data with Density-Based Scan Algorithm with Noise (DBSCAN) % ------------------------------------------------------------------------- % Input: % x - data set (m,n); m-objects, n-variables % k - number of objects in a neighborhood of an object % (minimal number of objects considered as a cluster) % Eps - neighborhood radius, if not known avoid this parameter or put [] % ------------------------------------------------------------------------- % Output: % class - vector specifying assignment of the i-th object to certain % cluster (m,1) % type - vector specifying type of the i-th object % (core: 1, border: 0, outlier: -1)

使用c++的素数分解模板，可以分解2^64范围的数字。一般用于ACM竞赛模板，具体使用情况比较简单易用。程序主体使用pho以及squefof分解算法，中间不断使用米勒罗宾监测素数。分解过程主要在于猜测素数的位置逐个测试，也算是分解效率比较高的算法之一。用于ACM竞赛中还是比较好用比较能A题的一个版了。

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