Fix Ubuntu 20.04 workflow tests Previously, the tests did not run because the CMake version shipped with Ubuntu 20.04 does not understand the `--test-dir` option and silently fails. Change-Id: I335e1d9e3890aa56e66a9dfd0fccd4594a84a08c
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.