eigen: eigen
eigen: 
eigen: Eigen is a lightweight C++ template library for vector and matrix math,
eigen: a.k.a. linear algebra.
eigen: Unlike most other linear algebra libraries, Eigen focuses on the simple
eigen: mathematical needs of applications: games and other OpenGL apps, 
eigen: spreadsheets and other office apps, etc. Eigen is dedicated to 
eigen: providing optimal speed with GCC. 
eigen: http://eigen.tuxfamily.org/
eigen: 
eigen:    Packaged by Michelino Chionchio - www.slacky.eu