Re: General Relativity
- From: Igor Khavkine <igor.kh@xxxxxxxxx>
- Date: Tue, 23 Aug 2005 07:23:33 +0000 (UTC)
On 2005-08-22, tessel@xxxxxx <tessel@xxxxxx> wrote:
> BTW, Maxima (note spelling) is a freeware computational engine which
> currently has some of the functionality of a "bare bones" symbolic
> computation engine, but no differential algebra, Groebner basis, or
> differential equation solving packages comparable to Maple or Mathematica.
> However, some terribly industrious and talented lisp programmers could in
> principle extend Maxima (which is open source) to have these capabilities
> and then port GRTensorII to Maxima, which would make everything you need
> -free to all-. That would be cool, huh?
Actually, Maxima already has some rudimentary tensor support with some
predefined routines for GR calculations (which include Christoffel
symbols, Riemann tensor, and some of its contractions). Take a look at
the following sections of the Maxima manual:
http://maxima.sourceforge.net/docs/manual/en/maxima_29.html#SEC91
http://maxima.sourceforge.net/docs/manual/en/maxima_30.html#SEC106
However, depending on the version of Maxima you are using, it might take
some knowhow to get these packages to work.
In any case, from your remarks, it seems that even taking the above
packages into account, Maxima is still missing a lot of the features of
GRTensorII.
Igor
.
- References:
- General Relativity
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- Re: General Relativity
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- Re: General Relativity
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- General Relativity
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