Hi there, Is there a way to convince sage that the product of two mutable matrices are immutable ?
I need to consider matrix over a finite ring as a monoid and to take the monoid algebra (like a group algebra) of it. It works when defined but I can't compute any product in It because group algebra are stored using dict(element:coeff) and the product of the monoid returns unhashable matrices. sage: M = MatrixSpace(QQ, 3) sage: A = M.algebra(QQ, category=Monoids()) sage: A.one()^2 [...] TypeError: mutable matrices are unhashable Cheers, Florent -- 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 sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
