pyfem is a python based finite element method package. pyfem is Copyright (C) Jingyu Sun.

This package is a free software; you can redistribute it and/or modify it
under the terms of the Apache License as published by the Apache Software Foundation;
either version 2.0 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the Apache License, Version 2.0 for more details.

You should have received a copy of the Apache License, Version 2.0 along
with this program; if not, see http://www.apache.org/licenses/LICENSE-2.0 or
Apache License 2.0.txt in this directory.

Please note that although pyfem is freely available, it is copyrighted by the author
and may not be sold or included in commercial products without a license.

If you use pyfem in any program or publication, please acknowledge
its author by adding a reference to:

J. Sun, pyfem: python-based finite element method,
https://github.com/sunwhale/pyfem, Institute of Mechanics, Chinese Academy of Sciences, 2021-2024.