The essence of Newton method is used constantly to approximate tangent curve, th...

可实现FFT功能的C语言源代码，经过适当修改即可应用到不同的FFT变换的工程中，适合初学者理解FFT的原理-FFT function can be achieved C language source code, after appropriate modifications can be applied to different projects FFT transform, suitable for beginners to understand the principles of FFT

黄金分割的程序实了例，求COSX的最大值-0.618 process does the cases, seek the maximum COSX

算法设计报告5个重要算法，包括贪心，回溯，动态规划，分支限界，分治法，每种算法介绍及实例问题代码，C++成功编译运行-Algorithem report including 5 Major algorithms

本程序是关于各种信道的模型，很有用！对多径数确定，每个路径的多普勒频移随机产生，能够准确的模拟多径多普勒信道的特性。

matlab的数学物理方程数值算法源程序。这是"Numerical Methods for Physics"第二版的matlab源程序。-Matlab mathematical physics equations numerical algorithm source. This is the "Numerical Methods for Physics," the second version of the Matlab source.

北大ACM试题poj 第3072题源码，很好的代码，希望对搞ACM的同学有帮助 -Peking University ACM Chapter 3072 question Question poj source code, good code, and want to help students engage in ACM

code for FDTD 1D with pml and source

修改普通map，提升性能对于c++程序来说 map的使用无处不在。影响程序性能的瓶颈也往往是map的性能。尤其在大数据情况下，以及业务关联紧密而无法实现数据分发和并行处理的情况。map的性能就成了最关键的技术。比如：ip表、mac表，电话号码表、身份证号码表的查询、病毒木马的特征码的云查杀等等。stl库的map采用二分查找，性能最差。Google的哈希map性能和内存目前是最优的，但是有重复碰撞的机率。我在电信行业和信息安全行业里的工作经历发现，目前网络上的哈希算法都在查询速度上远远无法满足日趋增长的网络大数据要求。因此产生了自己写算法的想法。现在我把自己的算法发布出来。大家可以测试对比发现，我的算法属于零碰撞的几率，但是性能比哈希算法还优。声明：该代码不能用于商业用途，只能用于科学研究。

自己用C++做的简单的迷宫，特点是可以自定义迷宫的属性-own use C to do simple maze, which is characterized can define the attributes of the maze

计税程序。可以计算每周收入、最近收入、从年初到目前的所得税、扣除的联邦收入税以及帐目检查等。 This program computes weekly payroll, current earnings, year to date earnings FICA tax, federal Income Tax Withheld, and check Amount.-taxable procedures. Income can be calculated weekly, recently income from the beginning of the current income tax, the deduction of federal income taxes as well as accounts of inspection. This program computes weekly payroll, current earnings, year to date earnings FICA tax, federal Income Tax Withheld, and check Amount.