Which Sage version are you using? This example works fine for me (under Sage v6.7)
On 5 June 2015 at 20:50, David Perkinson <dav...@reed.edu> wrote: > sage: m = matrix([[2,-1,-1],[-1,2,-1],[-1,-1,2]]) > sage: Q = ZZ^3/m.row_space() > sage: Q.0 > (1, 0) > sage: Q.1 > (0, 1) > sage: m = matrix([[3,-1,-1,-1],[-1,3,-1,-1],[-1,-1,3,-1],[-1,-1,-1,3]]) > sage: Q = ZZ^4/m.row_space() > sage: Q.0 > <repr(<sage.modules.fg_pid.fgp_element.FGP_Module_class_with_category.element_class > at 0x7f096fc034b0>) failed: > AttributeError: 'sage.matrix.matrix_integer_sparse.Matrix_integer_sparse' > object has no attribute '_clear_denom' > > > > -- > You received this message because you are subscribed to the Google Groups > "sage-support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-support+unsubscr...@googlegroups.com. > To post to this group, send email to sage-support@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-support. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
