Welcome to PyGRO’s documentation!

PyGRO [pronounced /’pi.gro/, from the italian pigro: lazy] is a Python library that provides methods and functions to perform the numerical integration of the geodesic equations describing a particle or photon orbit in any metric theory of gravity, given an analytic expression of the metric tensor.

Check out the Installation section for getting started.

Tutorials:

• Installation
  • Install via pypi
• Define your own-spacetime
  • Purely symbolic approach
  • Auxiliary expressions approach
  • Auxiliary functions approach
• Integrate a geodesic in PyGRO
  • Dealing with horizons
  • Integrating time-like and null geodesics
• Visualize the results

API:

• Metric()
• GeodesicEngine()
• Geodesic()
• Integrators

Indices and tables

• Index

• Module Index

• Search Page