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-   -   Trace calculations in QED, freeware (http://www.physicsforums.com/showthread.php?t=123024)

Calvin D. Ritchie Jun6-06 04:00 AM

Trace calculations in QED, freeware
 
Is there a reliable freeware program for Windows XP Pro to do traces
of gamma matrix products? I've tried Google, but couldn't find a
search phrase that was precise enough to find anything useful.

TIA
Don Ritchie


BlagooBlanaa Jun6-06 04:00 AM

Re: Trace calculations in QED, freeware
 
Directly emailed as well, due to overmoderation the by Usenet nazis
http://starship.python.net/crew/mike...f/node110.html

just get a hold of maxima too (freeware)

"Calvin D. Ritchie" <DonRitchie870@netscape.net> wrote in message
news:Owhgg.127753$Fs1.44216@bgtnsc05-news.ops.worldnet.att.net...
> Is there a reliable freeware program for Windows XP Pro to do traces
> of gamma matrix products? I've tried Google, but couldn't find a
> search phrase that was precise enough to find anything useful.
>
> TIA
> Don Ritchie
>



Igor Khavkine Jun8-06 04:00 AM

Re: Trace calculations in QED, freeware
 
Calvin D. Ritchie wrote:
> Is there a reliable freeware program for Windows XP Pro to do traces
> of gamma matrix products? I've tried Google, but couldn't find a
> search phrase that was precise enough to find anything useful.


The following are free software packages that have some facility for
dealing with the algebra of Dirac gamma matrices:

Maxima, http://maxima.sourceforge.net/
Axiom, http://wiki.axiom-developer.org/FrontPage
GiNaC, http://www.ginac.de/

I believe all of them work on Windows. However, if you decide to use
any one of them, you'll have to spend some time learning to use the
provided environment.

There also seem to be addon packages for commercial computer algebra
systems that do the trick:

Maple, http://a-siver.chat.ru/
Mathematica, http://library.wolfram.com/infocenter/MathSource/435/
Reduce, www.reduce-algebra.com/docs/cvit.pdf

Hope this helps.

Igor



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