Eigen 3.2.2
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Eigen is a C++ template library for linear algebra: matrices, vectors,
numerical solvers, and related algorithms.

Website: http://eigen.tuxfamily.org/

v3.2.2. Released on August 4, 2014. This is a copy of the source
distribution from http://bitbucket.org/eigen/eigen/get/3.2.2.tar.bz2.

Non MPL2 license code is disabled. Trying to include such files will
lead to an error. See ./Eigen/src/Core/util/NonMPL2.h for details.