Add accessors to GradientProblem Change-Id: Ic818eec240fe69b09815f1cc54f7f132cca0abb8
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.