GTSAM is released under the simplified BSD license, reproduced in the file
LICENSE.BSD in this directory.

GTSAM contains several third party libraries, with documentation of licensing
and modifications as follows:

- CCOLAMD 2.9.6: Tim Davis' constrained column approximate minimum degree
ordering library
    - Included unmodified in gtsam/3rdparty/CCOLAMD and
      gtsam/3rdparty/SuiteSparse_config
    - http://faculty.cse.tamu.edu/davis/suitesparse.html
    - Licenced under BSD-3, provided in gtsam/3rdparty/CCOLAMD/Doc/License.txt
- Eigen 3.4.0:  General C++ matrix and linear algebra library
    - Licenced under MPL2, provided in gtsam/3rdparty/Eigen/COPYING.README
    - Some code that is 3rd-party to Eigen is BSD and LGPL
- METIS 5.1.0: Graph partitioning and fill-reducing matrix ordering library
    - Included unmodified in gtsam/3rdparty/metis
    - Licenced under Apache License v 2.0, provided in
      gtsam/3rdparty/metis/LICENSE.txt
- Spectra v1.1.0: Sparse Eigenvalue Computation Toolkit as a Redesigned ARPACK.
    - Licenced under MPL2, provided at https://github.com/yixuan/spectra
