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 at > http://groups.google.com/group/sage-edu?hl=en. > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- 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 at http://groups.google.com/group/sage-edu?hl=en.