The following code generates an attribute error: kQ = FreeAlgebra(QQ ,2 , 'x') mons = [kQ.gens()[0], kQ.gens()[1], kQ.gens()[0]*kQ.gens()[1]] mats = [Matrix(QQ,3,[1, 0, 0, 0, 1, 0, 0, 0, 0]), Matrix(QQ, 3, [0, 0, 0, 0, 0, 0, 0, 0, 1])] A = FreeAlgebraQuotient(kQ, mons, mats, 'x') A.gens()[0]*A.gens()[1]
Specifically it is the last line when you try and multiply those two generators. If you add them or multiply one by a scalar then there is no error. The error is: AttributeError: 'FreeAlgebraElement' object has no attribute '_element_list' I do not know enough about sage to know if this is a bug or if this is a problem with my code. When I look at FreeAlgebraQuotient? there is example code that includes multiplication of elements and it doesn't generate an error, but I would think if there was an error in my code then it wouldn't be able to add and multiply by scalars either. I would appreciate it if someone else would take a look and tell me if this is a bug that I should report or if I've made a mistake in my code. -Jim Stark -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
