The following works (at least in sage-4.4.4): sage: R.<x,y,z> = QQ[] sage: SF = SymmetricFunctions(QQ) sage: SF.from_polynomial(x^2 + y^2 + z^2) m[2] sage: SF.from_polynomial(x^2 + y^2) ... ValueError: x^2 + y^2 is not a symmetric polynomial
Cheers, Jason On 07/20/2010 09:23 PM, kcrisman wrote: > It doesn't seem there is one at this point, though there is a lot of > stuff for using them. This is now > http://trac.sagemath.org/sage_trac/ticket/9558 > .. > > - kcrisman > > On Jul 20, 7:11 am, Epsilon <[email protected]> wrote: >> Hi, >> >> I would like to know if there are any function that says if a >> polynomial is or not symmetric (like: 'is_symmetric'), so Mathematica >> have this kind of function. >> >> http://en.wikipedia.org/wiki/Symmetric_polynomial >> >> Thanks! >> >> Esther > -- 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
