Eigen is a C++ template library for linear algebra: matrices, vectors, and related algorithms.
I am looking at taking the inverse of a large matrix, common size of 1000 x 1000, but sometimes exceeds 100000 x 100000 (which …
concurrency parallel-processing linear-algebra eigen matrix-inverseIs there a ready function or method in Eigen for the Hat operator? That is the operator, returning a matrix, …
c++ eigen cross-productI'm currently working on a MATLAB project and I'd like to re-implement the most computational-heavy parts using C++ and Eigen. …
c++ vectorization eigen submatrixI have an Eigen::MatrixXd and I would like to modify all its elements by applying a function component-wise. For …
c++ matrix eigenSuppose I have Eigen::VectorXd x; //{1,2,3,4,5,6,7,8} and Eigen::VectorXd ind_vec; //{0,2,4,5} Is there a way an easy way to extract …
c++ eigen eigen3Does Eigen have efficient type for store dense, fixed-size, symmetric matrix? (hey, they are ubiquitous!) I.e. for N=9, it …
c++ matrix linear-algebra eigenI have a question about Eigen library in C++. Actually, I want to calculate inverse matrix of sparse matrix. When …
c++ matrix sparse-matrix eigen eigen3The setRandom function in the Eigen matrix library fills a given matrix with random numbers in the range [-1,1]. How …
c++ eigen eigen3How to convert an Eigen::Matrix<double,Dynamic,Dynamic> to an Eigen::SparseMatrix<double> ? I'm looking …
c++ matrix sparse-matrix eigenI'm studying simple multiplication of two big matrices using the Eigen library. This multiplication appears to be noticeably slower than …
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