ed45bac3205db07dc7ffd3e7b5e674bc4a3f2a05
libeigen/eigen!2593 Closes #1477
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/ or https://libeigen.gitlab.io.
For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.