#9511: Upgrade Givaro to version 3.7.0
-------------------------------------------------------------------+--------
Reporter: pcpa |
Owner: cpernet
Type: enhancement |
Status: needs_review
Priority: minor |
Milestone: sage-5.1
Component: givaro |
Resolution:
Keywords: | Work
issues:
Report Upstream: Reported upstream. No feedback yet. |
Reviewers:
Authors: Paulo César Pereira de Andrade, Martin Albrecht | Merged
in:
Dependencies: #12883, #12761 |
Stopgaps:
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Old description:
> Givaro 3.6.x is a requirement for !LinBox 1.3.0.
>
> * '''Install'''
> http://sage.math.washington.edu/home/malb/spkgs/givaro-3.7.0.spkg
> * '''Apply''' [attachment:trac_9511_givaro_3_6_x.patch]
>
> See https://bitbucket.org/malb/givaro-spkg for SPKG Repository.
New description:
Givaro 3.6.x is a requirement for !LinBox 1.3.0.
* '''Install'''
http://sage.math.washington.edu/home/malb/spkgs/givaro-3.7.0.spkg
* '''Apply''' [attachment:trac_9511_givaro_3_7_x.patch]
See https://bitbucket.org/malb/givaro-spkg for SPKG Repository.
--
Comment (by malb):
I rebased the patch to 5.1.beta5. In particular, this patch removes the
line from {{{matrix2.pyx}}} that producses the offending output
{{{
sage -t "devel/sage-main/sage/matrix/matrix2.pyx"
**********************************************************************
File "/home/vbraun/opt/sage-5.1.beta5/devel/sage-
main/sage/matrix/matrix2.pyx", line 9813:
sage: L
Expected:
[ 3 0 0]
[ 4*a^2 + 1 1 0]
[ 3*a + 2 a^2 + 2*a + 3 3]
Got:
[ 2 0 0]
[ a^2 + 4 1 0]
[ 2*a + 3 a^2 + 2*a + 3 2]
**********************************************************************
}}}
The Cholesky decomposition is not unique over finite fields and we
shouldn't test for the output (which can be random depending on which
square-root is chosen) but test for L*L^T^ == A. This is done by the line
after the line removed in this patch. Hence, correctness is checked. Note
that I discussed this off-list Rob Beezer who is the author of the line
removed in this patch.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9511#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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