On Mon, Jul 19, 2010 at 11:46 PM, vasu <[email protected]> wrote: > Hi all > I have been using the inner tensor product in the Schur basis. My > question is : > > a) Is it just my computer or is this way slower than Stembridge's SF > package ? > > For example, SF computes > > s[14,14].itensor(s[14,13,1])
flat:number_field wstein$ sage ---------------------------------------------------------------------- | Sage Version 4.5.rc1, Release Date: 2010-07-14 | | Type notebook() for the GUI, and license() for information. | ---------------------------------------------------------------------- sage: s[14,14].itensor(s[14,13,1]) --------------------------------------------------------------------------- NameError Traceback (most recent call last) /Users/wstein/sage/build/sage-4.5/devel/sage-main/sage/rings/number_field/<ipython console> in <module>() NameError: name 's' is not defined > > in "no time" . But it seems to take quite a lot of time on Sage. I > have 4 gb memory and it ends up using 2+ gb for this particular > computation ( if I remember correctly) > > There's another methods kronecker_product which does the same thing, > and is slow as well. > > Any insights? You might try posting on the sage-combinat list: http://groups.google.com/group/sage-combinat-devel -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
