The following may be a bug or me not understanding p-adic floating point computations:
sage: R = Qp(2,type='floating-point',print_mode='terse') sage: M = Matrix(R,4,[0, 0, 1, 1, 2^20, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1]) sage: M.det() 1048575 sage: M.inverse() --------------------------------------------------------------------------- ZeroDivisionError Traceback (most recent call last) .... ZeroDivisionError: input matrix must be nonsingular sage: M = Matrix(R,4,[0, 0, 1, 1, 2^19, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1]) sage: M.inverse() [ 1048575 2 0 1] [274878955520 524288 1 1048575] [ 524289 524287 1 524287] [274877382656 524289 1048575 524289] Works. -- 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.
