It's quite confusing where this bug lies. I would assume that sage.libs.pari.gen.gen.mathnf
returns the wrong thing but since I can't find the definition of new_gen I can't debug it further. Michel On Jun 1, 10:55 pm, Michel <[EMAIL PROTECTED]> wrote: > No patch but I can tell you were there is something obviously wrong. > > The matrix H on line 1056 in matrix_integer_dense.pyx should > be the empty matrix (perhaps []?) but it is something like ['','']. > The computation > for adding the missing zero rows goes wrong after that. > > Michel > > On Jun 1, 9:34 pm, "William Stein" <[EMAIL PROTECTED]> wrote: > > > On 6/1/07, Thea Gegenberg <[EMAIL PROTECTED]> wrote: > > > > The method echelon_form gives me an error when I try to take the > > > echelon form of a zero matrix. It says "TypeError: entries has the > > > wrong length" > > > Here's an example to illustrate the bug. I hope somebody will > > fix it and send me a patch :-). > > > sage: m = matrix(ZZ,3,3,[0]*9) > > sage: m.ech > > m.echelon_form m.echelonize > > sage: m.echelon() > > --------------------------------------------------------------------------- > > <type 'exceptions.AttributeError'> Traceback (most recent call last) > > > /home/was/talks/2007-06-01-grants/<ipython console> in <module>() > > > <type 'exceptions.AttributeError'>: > > 'sage.matrix.matrix_integer_dense.Matrix_integer_de' object has no > > attribute 'echelon' > > sage: m.echelon_form() > > --------------------------------------------------------------------------- > > <type 'exceptions.TypeError'> --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://sage.math.washington.edu/sage/ and http://sage.scipy.org/sage/ -~----------~----~----~----~------~----~------~--~---
