Thanks!
On 23/07/16 14:33, Volker Braun wrote:
fixed
On Saturday, July 23, 2016 at 6:19:30 PM UTC+2, vdelecroix wrote:
Hello,
I was trying to install the optional frobby package for Sage and got
[frobby-0.9.0.p2] Found local metadata for frobby-0.9.0.p2
[frobby-0.9.0.p2] Attempting to downl
Hello,
The lie package is experimental (as mentioned in the file
build/pkg/lie/type). However, an old style package appears on the
mirrors in the optional category
$ sage -optional|grep lie
lie. 2.2.2.p5 (not_installed)
or look at
http://files.sagemath.or
Hello,
The installation of the old style pip package breaks pip! See the
attached log of the trac installation. Is there any obstruction of
making it a new style "pip style" package?
See #21076
Cheers,
Vincent
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On 24/07/16 05:13, Dima Pasechnik wrote:
I believe that the work on libGAP interface might better wait for GAP
folks to come up with their own libGAP. They refused to merge "our"
libGAP, and they say they have their own version in the works, which
they need to create a Jupyter kernel for GAP.
I
I confirm that I did not get any notification since yesterday night...
Vincent
On 25/07/16 12:34, leif wrote:
It seems I'm again not getting any trac notifications since about 20:00
UTC yesterday (July 24th).
(And no, I didn't change my preferences...)
-leif
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On 26/07/16 07:52, Volker Braun wrote:
On Tuesday, July 26, 2016 at 1:25:34 PM UTC+2, Erik Bray wrote:
2) Currently this feature is intended as a developer tool only;
On the plus side every user who is interested in Sage will immensely
benefit from the scientific software universe that ope
Hello,
We have isomorphism between the following rings
R1 = QQ['a']['b']['c']
R2 = QQ['a','b']['c']
R3 = QQ['a']['b','c']
R4 = QQ['a','b','c']
However, sage treats them differently.
sage: R1('a').quo_rem(R1('b'))
Traceback (most recent call last):
...
ArithmeticError: Division non exact (consi
This is indeed very bad (the relevant message is [1]). And not the only
one [2]. Please do not change any password on trac since this is fixed!!
[1] https://groups.google.com/forum/#!topic/sage-trac/xT0JWnw0LkU
[2]
https://groups.google.com/forum/#!searchin/sage-trac/password|sort:date
Vinc
Hi Simon,
Are the sources available somewhere else than on your computer?
On 30/07/16 19:09, Simon King wrote:
Hi!
Once more I got the impression that "internal changes that don't require a
deprecation" broke the software that is an important part of my
research.
When trying to build the old-
trying to install version 2.1.4.p0 available from the mirrors I got a
lot of errors (unrelated to cysignals)
../mtx2.2.4/src/zzz.c:110:21: error: expected identifier or '(' before
'[' token
static BYTE restrict[4][256]; /* Restrictions to subfields */
../mtx2.2.4/src/zzz.c:382:10: error: exp
With
$ export CC="gcc-4.9"
$ sage -p p_group_cohomology-2.1.5.spkg
I confirm at least that I got the very same error as you do!
On 30/07/16 19:39, Simon King wrote:
Hi Vincent,
On 2016-07-30, Vincent Delecroix <20100.delecr...@gmail.com> wrote:
Are the sources available som
etc is now untyped
in other words
cpdef ModuleElement _sub_(self, ModuleElement other):
should now be
cpdef _add_(self, right)
Vincent
On 30/07/16 19:53, leif wrote:
Vincent Delecroix wrote:
Hi Simon,
Are the sources available somewhere else than on your computer?
And/or could yo
On 30/07/16 20:35, Simon King wrote:
Hi Vincent,
On 2016-07-31, Vincent Delecroix <20100.delecr...@gmail.com> wrote:
At least, adding explicitely to the include_dirs in setup.py the line
os.path.join(SAGE_LOCAL, "lib/python2.7/site-packages/cysignals/")
the error disappe
Apparently there is something weird happening with the cysignals
deprecation (occurring when interrupt.pxi is invoked) when importing the
module. For example you can test the following (that *does* work)
$ cd ${SAGE_LOCAL}/lib/python2.7/site-packages/pGroupCohomology
$ sage -q
sage: import coho
Dear devs,
This is a requirement for testing the octave interface. Anybody with
octave+sage installed is pleased to test #21135. I did it with octave
version 4.0.3 but the branch needs further testing with octave version
3.X.Y and/or 2.X.Y (that I was not able to compile).
Please report on t
Nice. GNU Savannah in first... what about autoevaluation? ;-P
On 02/08/16 19:30, leif wrote:
[For some reason, creating a new thread via gmane doesn't work -- or
there will probably come a duplicate later.]
I guess that if we start rating googlegroups with respect to the same
criteria its gra
On 03/08/16 08:57, Dima Pasechnik wrote:
On Wednesday, August 3, 2016 at 12:30:40 AM UTC+1, leif wrote:
[For some reason, creating a new thread via gmane doesn't work -- or
there will probably come a duplicate later.]
The FSF has created criteria for evaluating repository hosters w.r.t.
eth
Does at least "sage -gp" work?
Did you run "make ptestlong" to launch the tests? If so there is a log
in SAGE_ROOT/logs/ptestlong.log. That would be nice to have it!
On 03/08/16 11:45, 'Bill Hart' via sage-devel wrote:
sage -t --all seems to be passing most of its tests. Any tests that requir
Dear all,
I wanted to change the default milestone to 7-4 on our trac server (in
Admin->Milestones). However after clicking on the button "Apply changes"
on the bottom of the page the server does not respond. Anybody can help?
Cheers,
Vincent
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One thing (IMHO much more important than the "cookie cutter" buisness)
is to actually have a community supported language for SageMath in
travis [1]. My aim is to allow the following in the travis script
{{{
language: "SageMath"
version:
- "7.6"
- "8.0"
}}}
What need to be done
1) have 3 "o
0^0 is perfectly defined (and not by a convention)! a^b with both a and
b non-negative integers is the cardinality of the functions B -> A where
A and B have respectively cardinalities a and b. Note that this set is
sometimes denoted A^B. The question then becomes how many functions
there are f
Hi,
I found the following curious
sage: G = Graph([(0,3),(1,3),(2,3)])
sage: H = G.copy()
sage: G == H
True
sage: H.allow_loops(True)
sage: G == H
False
Is there any reason why allowing loops in H should change the status of
equality!?
Vincent
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More precisely, the sagemath package is available on zesty (17.04)
https://packages.ubuntu.com/zesty/sagemath
I also don't see the point of keeping the ppa updated. It would be more
confusing than helpful. One thing that needs to be done is to update the
documentation on the SageMath websi
Indeed! That was very useful for Sage installation on Ubuntu.
Vincent
On 03/09/2017 13:19, Eric Gourgoulhon wrote:
Thank you Jan for having maintained the PPA during all these years!
Best regards,
Eric.
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On 06/09/2017 10:28, Ximin Luo wrote:
Jeroen Demeyer:
On 2017-09-06 14:53, Ximin Luo wrote:
I've seen numerous cases where Sage has to change the expected test output
simply because a dependency was upgraded. There has to be a more sustainable
way of achieving this...
Suggestions welcome...
On 07/09/2017 18:04, Simon King wrote:
Hi Dima,
On 2017-09-07, Dima Pasechnik wrote:
I don't think anything special like libgap_enter/exit is needed when
calling libgap.* stuff from
Python or Cython.
The documentation in sage.libs.gap.libgap says:
"""
In particular, you must call ``libgap_m
On 08/09/2017 08:55, Simon King wrote:
On 2017-09-08, Simon King wrote:
When I do libgap_enter() and then
cdef GapElement_FiniteField zero = libgap(F.zero())
(where F=GF(2)), I get a crash. I am about to test whether I can make
up a minimal example from it.
Voilà :
sage: cython("""
...
+1
Would make sense to come up with topics (we are discussing it right now
in this thread). And then, we could set up a date poll for each of them.
(Might be what you were suggesting)
For the themtaics, I will be up for
* Python 3
* (Random) testing / speed regression
1) the test sui
On 12/09/2017 12:23, Jeroen Demeyer wrote:
On 2017-09-11 18:59, Maarten Derickx wrote:
I think that all patchbot failure tickets should automatically deserve
the status critical.
They should be blockers (unless the error comes from a broken patchbot).
+1
p.s. Tips on how to search for tick
Hi,
I think a meta-ticket is a complete burden to maintain. And as already
said in other mails, this identification should be done by other means.
Vincent
On 11/09/2017 18:59, Maarten Derickx wrote:
Hi all,
During the recent writing of new code and reviewing I got annoyed that it
costs real
On 12/09/2017 12:58, Daniel Krenn wrote:
On 2017-09-12 12:49, Daniel Krenn wrote:
On 2017-09-12 12:04, Frédéric Chapoton wrote:
I have access failures to the git repo from trac :
chapoton@pc-chapoton:~/sage$ git pull trac
u/mantepse/fricas_output_and_sage_conversion_bug
fatal: read error: Co
There is already
git://github.com/sagemath/sage.git
On 12/09/2017 13:26, Dima Pasechnik wrote:
A mirror on github is up (see another message here), enjoy...
https://github.com/dimpase/sagetrac-mirror
On Tuesday, September 12, 2017 at 12:05:53 PM UTC+1, Dima Pasechnik wrote:
basically same re
On 12/09/2017 16:26, Vincent Delecroix wrote:
On 12/09/2017 12:58, Daniel Krenn wrote:
On 2017-09-12 12:49, Daniel Krenn wrote:
On 2017-09-12 12:04, Frédéric Chapoton wrote:
I have access failures to the git repo from trac :
chapoton@pc-chapoton:~/sage$ git pull trac
u/mantepse
Hi Marteen,
"complete burden" = "each release". So precisely, we need somebody to
volunteer to maintain this list. I already hardly find the energy to
fill a ticket for the reasons why my patchbot is not working any more at
each new release (including the fact that I need to search for a
reas
On 12/09/2017 20:32, Dima Pasechnik wrote:
ah, right, do not use git://, use
the same thing, g...@trac.sagemath.org:sage.git, for both push and fetch.
We should not force a user to upload her ssh key on trac in order to
pull a branch.
we have seen this before, firewalls don't like git://
On 12/09/2017 20:46, Clemens Heuberger wrote:
Am 2017-09-12 um 20:33 schrieb Vincent Delecroix:
On 12/09/2017 20:32, Dima Pasechnik wrote:
ah, right, do not use git://, use
the same thing, g...@trac.sagemath.org:sage.git, for both push and fetch.
We should not force a user to upload her ssh
On 13/09/2017 08:17, Clemens Heuberger wrote:
Am 2017-09-12 um 20:48 schrieb Vincent Delecroix:
On 12/09/2017 20:46, Clemens Heuberger wrote:
Am 2017-09-12 um 20:33 schrieb Vincent Delecroix:
On 12/09/2017 20:32, Dima Pasechnik wrote:
ah, right, do not use git://, use
the same thing, g
On 12/09/2017 22:00, Erik Bray wrote:
On Tue, Sep 12, 2017 at 9:59 PM, Dima Pasechnik wrote:
On Tuesday, September 12, 2017 at 7:35:11 PM UTC+1, vdelecroix wrote:
On 12/09/2017 20:32, Dima Pasechnik wrote:
ah, right, do not use git://, use
the same thing, g...@trac.sagemath.org:sage.git,
On 13/09/2017 08:24, Vincent Delecroix wrote:
On 12/09/2017 22:00, Erik Bray wrote:
On Tue, Sep 12, 2017 at 9:59 PM, Dima Pasechnik
wrote:
On Tuesday, September 12, 2017 at 7:35:11 PM UTC+1, vdelecroix wrote:
On 12/09/2017 20:32, Dima Pasechnik wrote:
ah, right, do not use git://, use
On 13/09/2017 08:58, Volker Braun wrote:
On Tuesday, September 12, 2017 at 10:00:32 PM UTC+2, Erik Bray wrote:
It has *never* supported read-only access via HTTP or HTTPS.
Afaik we have always supported git:// access and our documentation
explicitly recommends setting it up that way; Its a
On 13/09/2017 09:17, David Roe wrote:
On Wed, Sep 13, 2017 at 3:10 AM, Dima Pasechnik wrote:
As I mentioned, this is not under our control which ports are blocked on
GCE hosts, and which are not.
I think it is (see https://cloud.google.com/compute/docs/vpc/using-firewalls),
but I'm still
Sided note: as far as I know, these pip packages are not involved in any
doctest.
On 13/09/2017 16:42, Maarten Derickx wrote:
And related to this, how much do we support pip packages. With this I don't
mean any random pip package that happens to be on pypi, but just the ones
that are returned b
On 13/09/2017 15:28, Maarten Derickx wrote:
So the main questions: do we consider an optional package not building, not
passing it's own testsuite or causing sage to have doctest failures a bug?
I do. And as well for me it is the frontier between optional and
experimental packages.
In the o
In case you did not notice, you are just preventing an important
discussion concerning the management of optional packages to happen...
On 15/09/2017 10:28, Jeroen Demeyer wrote:
On 2017-09-15 09:00, Jori Mäntysalo wrote:
If so, a
bug in Sage could -- at least in theory -- lead a compromise to
On 19/09/2017 14:22, Maarten Derickx wrote:
Hi Fellow sage devs cc Wilfied Huss,
Currently the optional package libtheora fails to install: see
https://trac.sagemath.org/ticket/23732 for details.
Actually, I also had troubles on Ubuntu 64 bits (based on debian).
I have looked a bit into this
On 19/09/2017 20:29, Maarten Derickx wrote:
Since the people in the thread "proposal: downgrade libtheora to
experimental package"
at https://groups.google.com/forum/#!topic/sage-devel/olOxh1f6-cc were
quite in favour of going even further then just downgrading it here a
concrete proposal:
remov
IMHO, I don't see the point of calling `x.parent()`. This whole
machinery is intended for Sage coercion model where you should properly
inherit from Element.
So +1 for type(x) on non Element.
On 21/09/2017 15:07, Jeroen Demeyer wrote:
After cleaning up some code related to homsets in #23905, I
If FriCAS is
* well maintained
* does build on various architectures and systems (32bits/64 bits,
GNULinux/cygwin/OSX)
(which I believe it is) then of course +1 for its inclusion as optional
package.
On 26/09/2017 16:06, 'Martin R' via sage-devel wrote:
Dear all,
I would like to propose t
On 27/09/2017 15:03, Jeroen Demeyer wrote:
On 2017-09-27 09:11, Vincent Delecroix wrote:
If FriCAS is
* well maintained
* does build on various architectures and systems (32bits/64 bits,
GNULinux/cygwin/OSX)
Indeed. This is exactly the necessary and sufficient condition for a
package to be
Do you mean
sage: IntegerListsLex(length=2, min_sum=0, max_sum=5).list()
[[5, 0],
[4, 1],
[4, 0],
[3, 2],
[3, 1],
[3, 0],
[2, 3],
[2, 2],
[2, 1],
[2, 0],
[1, 4],
[1, 3],
[1, 2],
[1, 1],
[1, 0],
[0, 5],
[0, 4],
[0, 3],
[0, 2],
[0, 1],
[0, 0]]
On 28/09/2017 15:55, u...@umich.ed
Good question :-)
On 28/09/2017 20:00, Ursula Whitcher wrote:
Yes, that looks like exactly the functionality I wanted!
Why doesn't the documentation at
http://doc.sagemath.org/html/en/reference/combinat/sage/combinat/integer_vector.html
link to the documentation for integer lists?
--Ursula.
Thanks for sharing!
This is funny how much energy is dedicated to monitor open source code
when the issue is that closed source companies are stealing open source
technologies... Why not a law to scan closed source softwares?
Vincent
On 02/10/2017 10:38, Nicolas M. Thiery wrote:
De
Dear all,
I am not sure when it started to fail but I got the following on 8.1.beta7
sage: Matrix(ZZ, sys.maxsize, sys.maxsize)
*** Error in `python': free(): invalid next size (fast):
0x04d8be80 ***
Erreur de seg
And the issue is still there after a fresh build from scratch!
On 04/10/2017 08:53, Vincent Delecroix wrote:
Dear all,
I am not sure when it started to fail but I got the following on 8.1.beta7
sage: Matrix(ZZ, sys.maxsize, sys.maxsize)
*** Error in `python': free(): invalid next size
Do you mean that you report the same issue on 8.1.beta7? I am
recompiling 8.1.beta6 right now to see.
Vincent
On 04/10/2017 18:30, David Roe wrote:
It seems to be okay in 8.1.beta6.
David
On Wed, Oct 4, 2017 at 10:24 AM, Vincent Delecroix <
20100.delecr...@gmail.com> wrote:
And the
As far as I know, I am the first to report this error (and not the only
one to have built 8.1.beta7).
On 04/10/2017 18:38, David Roe wrote:
No, I mean that there is no segfault: the RuntimeError is raised
successfully.
David
On Wed, Oct 4, 2017 at 10:31 AM, Vincent Delecroix <
20100.del
It is a violation of what!? Where did you read that parents should be
unique?
On 09/10/2017 09:26, Simon Brandhorst wrote:
{{{
sage: V = span(QQ,[(1,1),(1,0)])
sage: W = span(QQ,[(0,1),(1,0)])
sage: V
Vector space of degree 2 and dimension 2 over Rational Field
Basis matrix:
[1 0]
[0 1]
sage:
+1 for correcting the hash of submodules in these cases! If the
computation is expensive it can be done at the time __hash__ is called.
Note that for "submodules with basis" it is a bit different since you
specify a given set of generators.
Vincent
On 09/10/2017 14:35, Simon Brandhorst wrote
Hello,
[mpfrcx-0.4.2] sage_bootstrap.tarball.FileNotMirroredError: tarball does
not exist on mirror network
Vincent
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Thanks Volker.
On 11/10/2017 20:05, Volker Braun wrote:
fixed!
On Tuesday, October 10, 2017 at 10:17:12 AM UTC+2, Maarten Derickx wrote:
This is probably because it is still in beta. The tarbal can be found at
https://trac.sagemath.org/ticket/11806
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Error downloading rst2ipynb-0.2.2.tar.gz
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On 20/10/2017 05:38, Timo Kaufmann wrote:
After adding one more depencency (hevea) the compilation succeeds. Thank
you for your help.
It needs quite some dependencies that are not mentioned on the README's
instructions though (like hevea and texlive). Are those just undocumented
or does it depen
At #24072 I propose to simply disallow elements of positive
characteristic in the symbolic ring (even if pynac has some limited
support for it). It is for me the most reasonable option.
On 21/10/2017 08:35, Ralf Stephan wrote:
Symbolics and finite field elements don't mix. To prevent segfaults
You are suggesting to reread a very long thread... not very useful to
get new people involved.
As far as I understand there are distinct things:
A) distributing Sage sources (which has few to do with SSL)
B) building Sage with or without SSL support
C) distributing Sage binaries with or w
Dear Barbara,
Thanks for your detailed report!
In this case, if it just boils down to have a .list() method, it should
be straightforward to implement. Would you be interested in working on
this? The procedure to make modification to Sage source code is
described in the developer guide
Fixed in
https://trac.sagemath.org/ticket/24114
needs review!
Vincent
On 26/10/2017 12:45, 'B. L.' via sage-devel wrote:
Dear Vincent,
thank you for your suggestions!
For me, working as a Sage developer is not a question of interest, but a
question of time...
Currently, I will not be able
All right, after a
$ sage -f pip
brial compiled... missing dependency?
On 06/11/2017 16:31, Vincent Delecroix wrote:
Dear all,
A fresh compilation of Sage 8.1.beta9 failed on my computer with
Traceback (most recent call last):
File "/opt/sage/src/bin/pip2-lock", line 53, in
Dear all,
A fresh compilation of Sage 8.1.beta9 (with profiling enabled) failed on
my computer with
Traceback (most recent call last):
...
ImportError: No module named IPython.core.profiledir
Running setup.py install for ipykernel: finished with status 'error'
The complete log
After a
$ sage -f ipython
it gets better but failed again with
Traceback (most recent call last):
...
ImportError: No module named jupyter_client
(the more recent log is attached)
On 06/11/2017 16:46, Vincent Delecroix wrote:
Dear all,
A fresh compilation of Sage 8.1.beta9 (with profiling
After a
$ sage -f jupyter_client
it succeeded... missing dependency?
On 06/11/2017 16:59, Vincent Delecroix wrote:
After a
$ sage -f ipython
it gets better but failed again with
Traceback (most recent call last):
...
ImportError: No module named jupyter_client
(the more recent log is
On 06/11/2017 17:18, Eric Gourgoulhon wrote:
Hi Vincent,
Le lundi 6 novembre 2017 16:48:10 UTC+1, vdelecroix a écrit :
ImportError: No module named IPython.core.profiledir
Running setup.py install for ipykernel: finished with status 'error'
This is the failure discussed on sage-r
16:31, Vincent Delecroix wrote:
Dear all,
A fresh compilation of Sage 8.1.beta9 failed on my computer with
Traceback (most recent call last):
File "/opt/sage/src/bin/pip2-lock", line 53, in
from pkg_resources import load_entry_point
ImportError: No module named pkg_reso
Dear Andy,
You could also help improving the patchbot (written in pure Python)
https://github.com/sagemath/sage-patchbot
For example:
* fixing some false positive
* better support for testing of optional packages
* logs should not go in SAGE_ROOT/logs/patchbot/
Would you be interested?
V
simpler system dedicated to
trying out patches at the request of developers?
Thanks,
Andy
On 11/10/2017 02:25 AM, Vincent Delecroix wrote:
Dear Andy,
You could also help improving the patchbot (written in pure Python)
https://github.com/sagemath/sage-patchbot
For example:
* fixing some
which account are you using? "William Stein" (wst...@gmail.com) or
"William Stein 2" (wst...@sagemath.com)? There is something weird with
the second one.
On 10/11/2017 20:39, William Stein wrote:
Why is my account always blocked?
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William
On Fri, Nov 10, 2017 at 11:50 AM, Vincent Delecroix
<20100.delecr...@gmail.com> wrote:
which account are you using? "William Stein" (wst...@gmail.com) or "William
Stein 2" (wst...@sagemath.com)? There is something weird with the second
one.
On 10/11/2017 20:39, W
ding
Ph.D. students) in the area.
Best regards,
Marc Masdeu and Vincent Delecroix
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On 16/11/2017 11:32, Erik Bray wrote:
On Wed, Nov 15, 2017 at 10:00 AM, David Loeffler
wrote:
I'd like to request opinions on whether we should get rid of the "Trusted
Authors" check in the Sage patchbot.
At present, the patchbot won't test a ticket unless all of the names in the
Trac "Authors
Dear all,
Some patchbots such as sardonis are not happy with MapReduce
sage -t --long src/sage/parallel/map_reduce.py
**
File "src/sage/parallel/map_reduce.py", line 1090, in
sage.parallel.map_reduce.RESetMapReduce.start_worker
There is something wrong with the version numbers (see 2.7.0 on the last
line)
$ pip install --user
https://github.com/sagemath/sage-patchbot/archive/2.7.1.tar.gz
Collecting https://github.com/sagemath/sage-patchbot/archive/2.7.1.tar.gz
Downloading
https://github.com/sagemath/sage-patchbot/
And BTW the 2.7.1 installed as detailed below does not point to the
right version, the script still tries to download trusted users...
On 23/11/2017 23:32, Vincent Delecroix wrote:
There is something wrong with the version numbers (see 2.7.0 on the last
line)
$ pip install --user
https
Nils, in your case were you building from scratch or it was an update of
an existing compiled version? Did you try on the 8.1.rc4? It would be a
mess to have 8.1 out with this failure.
Vincent
On 02/12/2017 13:11, Nils Bruin wrote:
I actually had a similar problem when building the latest "de
Hello,
The tarball for gmpy2 has not been updated on the mirrors.
Vincent
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What about
sage: A = networkx.complete_bipartite_graph(2r, 3r)
On 14/12/2017 09:57, Antonio Rojas wrote:
Hi all,
In Arch we have upgraded networkx to version 2. This comes with major
API changes that affect Sage's interface, and I'm currently trying to fix
these issues. I'm struggling with a
This is fixed in
https://trac.sagemath.org/ticket/24396
And Eric you should be in copy of that ticket
On 18/12/2017 15:26, Eric Gourgoulhon wrote:
Hi,
Le lundi 18 décembre 2017 15:58:30 UTC+1, Vincent Klein a écrit :
Hi all,
I get the following errors with a fresh 8.2.beta0 install (after
On 19/12/2017 07:58, Jeroen Demeyer wrote:
On 2017-12-18 18:31, Simon King wrote:
One way to answer the question whether a coercion from A to B exists is
by implementing the method B._coerce_map_from_.
Right, I was asking the question because I need to implement such a
method for RIF and CI
Dear all,
I might introduce a non backward incompatible change for square root
(and more generally n-th roots) of power series.
While working on [1] I stumbled on a weird implementation of square root
for power series [2]. Namely, when extend=True it might just return a
formal element p so t
number theorists would "simplify" sqrt(-2) like
that).
Perhaps the simplest quadratic extension for your example would be QQ[[s]]
with s^2=2*t. How about that as a compromise? i.e. if the lowest order
term is not an n'th power then adjoin its n'th root?
John
On 21 December 20
like
that).
Perhaps the simplest quadratic extension for your example would be QQ[[s]]
with s^2=2*t. How about that as a compromise? i.e. if the lowest order
term is not an n'th power then adjoin its n'th root?
John
On 21 December 2017 at 11:17, Vincent Delecroix <20100.d...@gmail.com
On 21/12/2017 13:15, John Cremona wrote:
On 21 December 2017 at 12:29, Vincent Delecroix <20100.delecr...@gmail.com>
wrote:
I definitely get your point but completely disagree with the compromise. I
think that functions that behave differently depending on the arithmetic
nature of the
On 21/12/2017 17:07, Nils Bruin wrote:
On Thursday, December 21, 2017 at 3:19:57 AM UTC-8, vdelecroix wrote:
While working on [1] I stumbled on a weird implementation of square root
for power series [2]. Namely, when extend=True it might just return a
formal element p so that p^2 is the initial
I confirm the very same behavior on sage-8.2.beta0. Looking at the
trace, it is likely the g_pow from Pynac that has a problem. I opened
the following ticket
https://trac.sagemath.org/ticket/24418
Thanks for your report.
Vincent
On 22/12/2017 01:06, Nathan McNew wrote:
I recently instal
On 22/12/2017 12:17, Jeroen Demeyer wrote:
On 2017-12-20 09:56, Vincent Delecroix wrote:
In #24285, I did implement a _arb_ and _acb_ methods on number field
elements. In order for the coercion model to use it, I had to fight with
coercions declared in the constructor (self
Dear all,
While working on Puiseux series [1] I wanted to introduce a construction
functor for them. When the base ring is algebraically closed then it is
an algebraic closure functor (from power series). But when it is not, it
is an infinite algebraic extension (ie adding all x^(1/n)). I thin
Hi Simon,
On 26/12/2017 17:45, Simon King wrote:
Hi Vincent,
On 2017-12-26, Vincent Delecroix <20100.delecr...@gmail.com> wrote:
While working on Puiseux series [1] I wanted to introduce a
construction functor for them. When the base ring is algebraically
closed then it is an alg
Hello,
On sage-8.2.beta1, several patchbots report failures in
matrix/special.py. I opened
https://trac.sagemath.org/ticket/24449
Vincent
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On 05/10/2017 13:18, Jeroen Demeyer wrote:
Anybody has a complete backtrace, preferably with GDB installed?
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Dear all,
Working on #24432, I am faced with the following problem. We have a
NumberFields category and a number field is necessarily infinite. Hence
it would be natural for NumberFields() to be a subcategory of
Sets().Infinite(). What is the proper way to do it?
I tried to solve this by doi
On 31/12/2017 18:02, Travis Scrimshaw wrote:
Working on #24432, I am faced with the following problem. We have a
NumberFields category and a number field is necessarily infinite. Hence
it would be natural for NumberFields() to be a subcategory of
Sets().Infinite(). What is the proper way to do
Hi Ralf,
You asked two independent questions in one e-mail which is a bad
strategy to get answers. Let me focus on "is_X" in this sub-thread.
To my mind, is_X(Z) is very unexplicit as it may be one of
1. isinstance(Z, X_class)
2. Z in X_category()
which are two different things. Note that s
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