Some people in my dept. use Cadabra, a CAS developed with field-theory in mind (i.e. lots of tensors): http://cadabra.phi-sci.com/index.html
I have no experience with it so cannot advise on its usability. However, it's written in C++ and released under GPL2, so ideally could be wrapped up in Sage. Cheers J On Feb 5, 4:49 am, William Stein <wst...@gmail.com> wrote: > On Thu, Feb 4, 2010 at 6:13 PM, Dox <o.castillo.felis...@gmail.com> wrote: > > Hi people! > > As some of you may know I'm a physicist. One of my complains to > > Mathematica is the lack of an easily usable tensor package, specially > > for those (like me) interested in General Relativity calculations. > > > Does a package like that exist in Sage? > > There are numerous packages for Mathematica for doing tensor calculus. > I can't comment on whether or not they are "easily usable" (is any > interesting mathematics or physics "easy"?). Here's an example of > one of those packages:http://www.math.washington.edu/~lee/Ricci/ > > In 2006 and 2007 various people investigated writing tensor calculus > packages for Sage, but in the end nothing came of this. I think > there is maybe something in Maxima, which is included in Sage, but it > is nowhere as sophisticated as what is available for Mathematica. > > My third-hand understanding from people I talked with about this was > the Mathematica language/system was in fact particularly well suited > for tensor calculus. > > William > > > > > Thank you! > > > -- > > You received this message because you are subscribed to the Google Groups > > "sage-edu" group. > > To post to this group, send email to sage-...@googlegroups.com. > > To unsubscribe from this group, send email to > > sage-edu+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/sage-edu?hl=en. > > -- > William Stein > Associate Professor of Mathematics > University of Washingtonhttp://wstein.org -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
