基于linux的多线程udp传输

说明：  pcf8591AD转换芯片，51单片机控制28BYJ48步进电机(Pcf8591AD conversion chip, 51 single chip computer control 28BYJ48 stepper motor)

运用于人脸图像预处理中，主要实现功能有：人脸检测，人脸对齐，人脸图像放缩，人脸剪切。(Applied to the face image preprocessing, the main features are: face detection, face alignment, face image zoom, face cuts.)

关于标准c/c++的帮助文档 有一些简单的帮助文档可供参考或查询(A standard c/c++ help documentation)

基于Wegstein方法的求解方程的C++程序。(Wegstein-based method for solving equations C++ program.)

Dijkstra算法的实现，任意结点数无向不加权图的dijkstra最短路径实现，能读入所给的.txt文件 (Dijkstra algorithm, arbitrary nodes undirected unweighted graph dijkstra shortest path to achieve, to read the given. Txt files)

五种常见去隔行算法在MATLAB平台上的实现流程(The implementation process of the five common de-interlacing algorithm in the MATLAB platform)

说明：  C Primer Plus 第6版 中文版电子版(C Primer Plus 6 Chinese Edition Electronic Edition)

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用镜像矩阵求出矩阵的QR分解（正交三角分解），并求解线性方程组，该方法不必选主元，但其计算过程非常稳定。也可用于求矩阵的广义逆和求解线性最小二乘问题。子过程QRDCMP用镜像矩阵求m*n矩阵A的QR分解，A=Q^TR,其中Q是m*m正交矩阵，R为m*n上三角矩阵；子过程QRBKSB用矩阵的QR分解求解线性方程组Ax=b，其中A为n阶非奇异方阵。(Matrix obtained with the mirror matrix QR decomposition (orthogonal triangular decomposition), and solving linear equations, the method does not have to choose the main element, but its calculation process is very stable. Can also be used to find the generalized inverse matrix and solving linear least squares problems. Sub-process of the mirror matrix QRDCMP m* n matrix A QR decomposition, A = Q ^ TR, wherein Q is a m* m orthogonal matrix, R is m* n upper triangular matrix subprocess QRBKSB a QR decomposition to solve the matrix linear equations Ax = b, where A is non-singular square matrix of order n.)

对GIS的开发进行一小部分的分享，今后还开发更多。(A small part of the development of GIS is shared, and more will be developed in the future.)