bd72e4a8c4f2bc41d3b4a87be7d5e850efaa461d
(cherry picked from commit 9210e71fb3)
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.