Top Free Mathematica Packages for Calculating GR Tensors and Derivatives

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Discussion Overview

The discussion revolves around finding free Mathematica packages suitable for calculating general relativity (GR) tensors, performing covariant derivatives, and defining tensors. Participants share their knowledge of available tools and express preferences for software.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about free Mathematica packages for calculating GR tensors, covariant derivatives, and tensor definitions.
  • Another participant mentions a free package called ctensor for Maxima, expressing a preference against proprietary software like Mathematica.
  • A different participant points out the existence of a free Mathematica package named Ricci, suggesting it can be found online.
  • Another participant references GTensor2, noting its compatibility with MATLAB and its performance, although it is not a Mathematica package.

Areas of Agreement / Disagreement

Participants do not reach a consensus on a specific Mathematica package, and multiple suggestions are presented, indicating a lack of agreement on the best option.

Contextual Notes

Some responses focus on alternatives to Mathematica, such as Maxima and MATLAB, which may not directly address the original inquiry about Mathematica packages.

Who May Find This Useful

This discussion may be useful for individuals seeking free software solutions for tensor calculations in general relativity, particularly those interested in Mathematica and alternative programming environments.

jarod765
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Hi,

I am interested in obtaining a FREE mathematica package that can:

1) Calculate standard GR tensors (connections, Ricci, Einstein etc.)
2) take covariant derivatives
3) and define tensors

Does anyone know of a good Mathematica package?
 
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For Maxima (which is free), there is a package called ctensor. Dunno about Mathematica, since I consider my time on Earth too valuable to waste it on proprietary programming languages.
 
There is a package for Mathematica called Ricci, which is free, just the package not Mathematica. You can search for it on the web and download it.
 
There is also GTensor2 for maple which runs quite well under MATLAB with the symbolic toolbox.
 

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