ceres-solver is non-linear least squares problems solver, which contains dense QR and Cholesky factorization for small problems using Eigensparse Cholesky factorization for large sparse problems using SuiteSparse and CXSparsespecialized so…

SuiteSparse contains several packages for sparse non-linear least square systems. As README.txt says, some packages optionally use metis 4.0.1. To use metis, we need to put uncompressed metis directory metis-4.0 in the same directory conta…