Fix type mismatch in documentation Change-Id: Ief4d6a5039ea7af6f0b318df5146abe804611ca3
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.