Raise minimum required Eigen version to 3.3.4 Ubuntu 22.04 ships with Eigen 3.4.0. The MinGW workaround for -O3 related crashes has been available in Eigen since at least version 3.2.0, see https://gitlab.com/libeigen/eigen/-/commit/cc03c9d68354ea3fed03481de045c185ddc1fc49. Change-Id: Iebfd6ed1fa55a6b0f5bd57bd920188e7b486d8cb
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.