python SCAN算法实现（structural clustering algorithm for networks）

md5 类实现了RSA Data Security, Inc.在提交给IETF 的RFC1321中的MD5 message-digest 算法。 -md5 category achieved RSA Data Security, Inc. Submitted to the IETF RFC1321 The MD5 message-digest algorithm.

粒子群算法虽然具有算法简单，寻优速度快等优点，但同时存在算法容易收敛，易陷入局部最优值等问题。采用遗传算法改进粒子群算法，通过选择、交叉和变异操作的引入，改进了算法性能，增强了算法的全局搜索能力。本案例研究了基于混合粒子群算法的TSP寻优算法。

用三元组表示稀疏矩阵,可以转置 加法，减法，乘法，求逆。- With three Yuan groups expressed the sparse matrix, may transpose the addition, the subtraction, the multiplication, asks to go against.

一种排序算法-A kind of sorting algorithm

XMDS is a code generator that integrates equations. You write them down in human readable form in a XML file, and it goes away and writes and compiles a C++ program that integrates those equations as fast as it can possibly be done in your architecture.

本程序是对shamir门限方案的简单实现，主要分为生成子密钥，传递子密钥，恢复密钥，三个部分。可以用来更好的了解shamir方案，对shamir门限有一个全新的方案

利用matlab计算光子晶体的各种特征参量。 一共五个希望对大家有所帮助。-Matlab calculated using the various features of photonic crystals parameters. A total of five people want to help.

一个很好用的常用数学分布实现代码集合-a good use of mathematical distribution achieve common pool code

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龙格库塔法解二阶方程的数值计算代码. 分别套用两次龙格库塔法解-Runge-Kutta method of numerical solution of second-order equation of the code. Were applied to two solutions of Runge-Kutta method