Install libeigen3-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libeigen3-dev
Description:
lightweight C++ template library for linear algebra
Eigen 3 is a lightweight C++ template library for vector and matrix math, a.k.a. linear algebra. . Unlike most other linear algebra libraries, Eigen 3 focuses on the simple mathematical needs of applications: games and other OpenGL apps, spreadsheets and other office apps, etc. Eigen 3 is dedicated to providing optimal speed with GCC. A lot of improvements since 2-nd version of Eigen.
Homepage: http://eigen.tuxfamily.org
Version: 3.3.4-4
Section: universe/libdevel