#12689: Segfault in solve_left for sparse matrices over ZZ
------------------------------+---------------------------------------------
Reporter: davidloeffler | Owner: jason, was
Type: defect | Status: new
Priority: critical | Milestone: sage-5.0
Component: linear algebra | Keywords: segfault
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
------------------------------+---------------------------------------------
Comment(by dsm):
We can push the bug a bit farther back:
{{{
sage: A = identity_matrix(ZZ, 2, sparse=True)
sage: B = identity_matrix(ZZ, 2, sparse=True)
sage: A.augment(B)
[1 0 1 0]
[0 1 0 1]
sage: A.change_ring(QQ).augment(B.change_ring(QQ))
[1 0 1 0]
[0 1 0 1]
sage: A.change_ring(QQ).augment(B)
[ 1 0 1/0 0]
[ 0 1 0 1/0]
}}}
1/0 doesn't look right..
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12689#comment:1>
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.
