use demon data feature extraction C Programming Language, welcomed the exchange

基于矢量控制的永磁同步交流伺服电机控制系统代码，内含文档介绍了永磁同步交流电机的矢量控制理论，并根据矢量控制理论运用DSP实现了对永磁同步交流伺服电机的电流、速度和位置的三闭环控制，并给出了源程序。非常实用。

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

vc编写大数运算库，支持各种运算，数据长度自定义-vc preparation of large numbers computing library, supports a variety of computing, data length custom

数值计算，利用newton迭代法和弦截法计算插值多项式-Numerical calculation, using newton iteration method chord intercept method to calculate the interpolation polynomial

Python实现的协同过滤推荐算法，包括UserBaseCF和ItemBaseCF两种，使用的数据集是Movielens数据集，包含在源码中。

用c语言实现生产者-消费者问题-used language producer-consumer issues

CRC循环算法的C语言实现，非常好用CRC循环算法的C语言实现-CRC cycle algorithm realize the C language, very easy to use CRC cycle algorithm realize the C language

很全的数据结构源代码，线性表、树、图的代码都有具体实现。以及字符串的各种操作

利用AFEPack包求解变二次系数的椭圆型方程.在求解这个问题的过程中，先要把程序的结构进行整理，将变二次项系数的因素加进去 ，并使得其更加有利于复杂一些的问题的求解 。为此，我们使用一个类来管理这个求解的问 题，先写一个对这个类进行声明的头文件 EllipticEquation.h-Use AFEPack package for solving variable coefficient elliptic quadratic equation. In solving this problem, the first to organize the structure of the procedure will change coefficient of quadratic terms added to the list of factors, and make it more conducive to the complexity of some of the problem solving. To this end, we use a class to manage to solve this problem, first write a statement of this type for the header files EllipticEquation.h

本文从理论上推导出CRC 算法实现原理，给出三种分别适应不同计算机或微控 制器硬件环境的C 语言程序。读者更能根据本算法原理，用不同的语言编写出独特风格 更加实用的CRC 计算程序。-This paper theoretically deduced from the principles of CRC algorithm is given three separate computers or micro-controller to adapt to different hardware environment of the C language program. According to this algorithm the reader a better theory, in different languages a unique style of the CRC calculation program more practical.