xPPN: tensor algebra for the PPN formalism

Description

xPPN is an implementation of the parametrized post-Newtonian formalism using xAct for Mathematica.

Installation

  1. Install xAct.
  2. Inside the xAct installation folder, clone the xPPN repository:
    git clone https://github.com/xenos1984/xPPN.git
  3. Load the package in Mathematica:
    << `xAct`xPPN`

Running the examples

  1. Open any file from the Examples folder (with extension wl) in Mathematica.
  2. Choose "Run All Code" to execute the contents.

Documentation

Further information

The parametrized post-Newtonian formalism

xAct