Using a computer to calculate Einstein tensor etc.

  • Thread starter Mosis
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  • #1
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Main Question or Discussion Point

I'm wondering if there are any good programs to calculate the various tensors that one needs to solve the Einstein field equations for a very general metric i.e. metric components are not specified explicitly, only their functional dependence on the coordinates

e.g.

[tex]ds^2=-n^2(\tau,y)d\tau^2 + a^2(\tau, y)\delta_{ij}dx^idx^j[/tex]

and things that look like that.

I have Maple and Mathematica, if there are any packages for those programs that deal with stuff like this.

Thanks!
 
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Answers and Replies

  • #2
robphy
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ds^2=-n^2(\tau,y)d\tau^2 + a^2(\tau, y)\delta_{ij}dx^idx^j

snip..

P.S. How can I make the Latex code appear correctly rendered?

enclose in [tex ] [/tex ] tags (no spaces in each tag!)
[tex]ds^2=-n^2(\tau,y)d\tau^2 + a^2(\tau, y)\delta_{ij}dx^idx^j [/tex]
click on the rendered equations to see.


Try http://grtensor.phy.queensu.ca/
 

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