e7248b26a1ed53fa030c5c459f7ea095dfd276ac
(cherry picked from commit 028ab12586)
Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.
For more information go to http://eigen.tuxfamily.org/.
For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.