tpTensor is a Mathematica package for doing index-free tensor calculations.
See: https://ahnorton.github.io/tpTensor/
tpTensor is a Mathematica package.
Copyright © 2016-2018 Andrew H. Norton.
Statement of copying permission:
tpTensor is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
tpTensor 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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with tpTensor. If not, see <http://www.gnu.org/licenses/>.