Eigen is a high-level, open-source C++ template library for linear algebra, widely used for handling matrices, vectors, and numerical solvers. Because it is a , "downloading" Eigen is often the only step required before you can start using it in your projects.
For the most up-to-date development version or specific releases, visit the official libeigen GitLab repository . eigen c++ download
As of May 2026, the latest stable release is , released in September 2025. Official Download Methods Eigen is a high-level, open-source C++ template library
Download the source code directly from libeigen.gitlab.io in .zip , .tar.gz , or .tar.bz2 formats. Eigen is a high-level
Use the command line to clone the repository directly: git clone https://gitlab.com/libeigen/eigen.git Installation via Package Managers