#12693: bug in jordan_form(transformation=true) for integer matrices
---------------------------------------+------------------------------------
Reporter: hthomas | Owner: jason, was
Type: defect | Status: new
Priority: major | Milestone: sage-5.1
Component: linear algebra | Resolution:
Keywords: jordan form, sd40.5 | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps: todo
---------------------------------------+------------------------------------
Changes (by rbeezer):
* keywords: jordan form => jordan form, sd40.5
Comment:
I cannot see how this routine should be guaranteed to succeed over a ring
that is not a field. And eventually we need to factor the characteristic
polynomial over the ring anyway.
So I see no harm into moving to the fraction field now and if there
'''is''' a way to do this over a ring, another patch can attempt that.
Rob
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12693#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
