The comma initializer a simple example join and block initialize join two row vectors together initialize metrics with block structure fill block expression Special metrics and arrays Zero(); Array33f::Zero(); ArrayXf::Zero(3); ArrayXXf::Zero(3,4);
使用STL库sort函数对vector进行排序,vector的内容为对象的指针,而不是对象. 代码如下 #include <stdio.h> #include <vector> #include <algorithm> using namespace std; class Elm { public: int m_iSortProof; private: int __m_iValue; static int __m_iCnt; public: Elm(); int get
使用Eigen 库:进行svd分解,形如 A = U * S * VT. JacobiSVD<MatrixXd> svd(J, ComputeThinU | ComputeThinV); U = svd.matrixU(); V = svd.matrixV(); A = svd.singularValues(); Eigen::JacobiSVD< _Matrix_Type_ > svd(a ,Eigen::ComputeThinU | Eigen::ComputeThinV);
Eigen http://eigen.tuxfamily.org/index.php?title=Main_Page 下载http://bitbucket.org/eigen/eigen/get/3.3.4.zip 2.91M Eigen 3.3.4 API documentation 配置:vs2013配置Eigen库 - CSDN博客 https://blog.csdn.net/u012428169/article/details/71169546 项目->属性->c++常规--附加包