> Exterior algebras were included as part of > http://trac.sagemath.org/ticket/15300 (which was merged into Sage 6.4). > > sage: E.<x,y> = ExteriorAlgebra(QQ) > sage: a = x * y + x - 3*y / 2; a > x^y + x - 3/2*y > sage: a.interior_product(x) > y + 1 > sage: a.interior_product(y) > -x - 3/2 >
Great. Any other Grassmann stuff beyond this? (E.g. "regressive product".) Is this interface with similar functionality in Singular or elsewhere (and/or the differential forms/manifolds folks)? -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
