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How to use tensors in Mathematica?

Posted 11 years ago
Hello everybody,
I am beginner in Mathematica. I would like to know how to use tensors in Mathematica in general relativity, i.e. when i have defined metric tensor, how to compute tensors that appear in Einstein and Maxwell equations and get exact form of both sides; lowering/uppering four-vectors, covariant derivate etc. Is it built in or is some package needed?

Thank you for any answer.
POSTED BY: Ji?í Ryzner
6 Replies
Posted 22 days ago

I have attached "msh_tensorial.m" (the tensor calculus package) to my previous reply, and I am attaching it again.

Attachments:
POSTED BY: Marty Parts
Posted 23 days ago

POSTED BY: Marty Parts
Posted 3 months ago

"Tensorial Analysis" was created by Mrs.Renan Cabrera and modified by shinabe munehiro .This tensor calculus package was made for general purpose, easy to use with good looking formula display.

POSTED BY: Marty Parts
Posted 22 days ago

Marty,

The tensor calculus package cannot be downloaded. Can you please repost.

Thanks

POSTED BY: Alan Mok
Posted 5 months ago
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