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Re:Physics Simulations by musgravepeter on Wednesday January 03, 2018 @03:16PM (#16064646)
Take a look at SageManifolds: https://hyperspace.uni-frankfurt.de/2017/01/20/sagemanifolds...

My understanding is the numerical GR community is moving in this direction. The theory people tend to roll their own inside of Mathematica or Maple. Some Maple users use GRTensorIII (https://github.com/grtensor/grtensor)

Disclaimer: I am a co-creator of GRTensorIII

Re:Physics Simulations by philipov on Wednesday January 03, 2018 @03:32PM (#16064792)
Thank you! This is exactly what I was looking for.