xPPN is an implementation of the parametrized post-Newtonian formalism using xAct for Mathematica.
- Install xAct.
- Inside the xAct installation folder, clone this repository:
git clone https://github.com/xenos1984/xPPN.git
- Load the package in Mathematica:
<< xAct`xPPN`
For further information, please visit the xPPN homepage.