On Monday, July 13, 2015 at 9:44:01 AM UTC+2, Jori Mäntysalo wrote:
Is there anything I can do for these? (Other than running the code
part-by-part.)
As quick hint I would use valgrind for the search.
http://wiki.sagemath.org/ValgrindingSage
--
You received this message because you are
For every matrix dimension there is a parent (MatrixSpace). You are most
likely seeing those. Use @fork / @parallel.
On Monday, July 13, 2015 at 9:44:01 AM UTC+2, Jori Mäntysalo wrote:
I was asked to make a code that iterates over all matrices of given type
and size. And once again I
Hi all!
My name is Michele Borassi, and I recently entered this great community for
a Google Summer of Code project.
Among other works, I am including in Sage an algorithm for computing the
Cuthill-McKee and the King orderings [1,2], which are heuristics used to
approximate the bandwidth of a
True, but in practice its easy to have a matrix result hang off an
@cached_method.
On Monday, July 13, 2015 at 12:15:07 PM UTC+2, Simon King wrote:
Hi Volker and Jori,
On 2015-07-13, Volker Braun vbrau...@gmail.com javascript: wrote:
For every matrix dimension there is a parent
What could be the reason for
File src/sage/tests/startup.py, line 17, in sage.tests.startup
Failed example:
print test_executable([sage, --python], cmd)[0] # long time
Expected:
False
Got:
BLANKLINE
which happens here in the two latest devel versions,
not sure when it started, I
On Mon, 13 Jul 2015, Volker Braun wrote:
For every matrix dimension there is a parent (MatrixSpace). You are most
likely seeing those.
But they have the same size. 7 x 7 on my example code.
--
Jori Mäntysalo
On Monday, July 13, 2015 at 10:45:20 AM UTC+2, Volker Braun wrote:
Never seen that before. What do you get when you run it manually?
Python 2.7.9 (default, May 28 2015, 07:15:13)
[GCC 4.8.3 20140627 [gcc-4_8-branch revision 212064]] on linux2
Type help, copyright, credits or license for more
On Monday, July 13, 2015 at 10:51:09 AM UTC+2, Nils Bruin wrote:
so I'd think there's a leak in constructing univar_pd. My guess would be a
cached routine that shouldn't be cached.
A little bisection shows that the leak is caused by calling eigenvalues.
However
L=[c for c in
Tor works in China (you might have to manually configure a bridge
https://bridges.torproject.org). It also works great for circumventing
censorship by European and American universities for that matter.
On Monday, July 13, 2015 at 12:08:02 PM UTC+2, Simon King wrote:
Hi Volker,
On
On Monday, July 13, 2015 at 10:39:17 AM UTC+2, Ralf Stephan wrote:
As quick hint I would use valgrind for the search.
http://wiki.sagemath.org/ValgrindingSage
Does valgrind understand python memory layout? most leaks in sage are due
to lingering references and hence are detectable by python.
Do you have pdb directory in your current working directory, or something
like that?
On Monday, July 13, 2015 at 11:12:20 AM UTC+2, Ralf Stephan wrote:
Oops, rather:
from sage.all import *
Traceback (most recent call last):
File stdin, line 1, in module
File
On Monday, July 13, 2015 at 1:49:25 PM UTC+2, Volker Braun wrote:
Do you have pdb directory in your current working directory, or
something like that?
Ah yes, I had pdb.py and pdb.pyc from earlier unrelated sessions.
Quite an accident, but you can see it happens.
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You received this
Never seen that before. What do you get when you run it manually?
$ sage --python
Python 2.7.9 (default, Jul 5 2015, 10:21:02)
[GCC 5.1.1 20150618 (Red Hat 5.1.1-4)] on linux2
Type help, copyright, credits or license for more information.
from sage.all import *
print('IPython' in sys.modules)
On Monday, July 13, 2015, R. Andrew Ohana andrew.oh...@gmail.com wrote:
On Sun, Jul 12, 2015 at 6:02 AM, Jeroen Demeyer jdeme...@cage.ugent.be
javascript:_e(%7B%7D,'cvml','jdeme...@cage.ugent.be'); wrote:
On 2015-07-12 03:40, R. Andrew Ohana wrote:
In addition, boxen.math.washington.edu
Hi Volker and Jori,
On 2015-07-13, Volker Braun vbraun.n...@gmail.com wrote:
For every matrix dimension there is a parent (MatrixSpace). You are most=20
likely seeing those. Use @fork / @parallel.
MatrixSpace is supposed to use a weak cache. Hence, if you drop all
matrices of a given dimension
On Mon, 13 Jul 2015, Nils Bruin wrote:
A little bisection shows that the leak is caused by calling eigenvalues.
Can you make a ticket with minimal example demonstrating bug?
--
Jori Mäntysalo
Oops, rather:
from sage.all import *
Traceback (most recent call last):
File stdin, line 1, in module
File /home/ralf/sage/local/lib/python2.7/site-packages/sage/all.py,
line 84, in module
from sage.misc.all import * # takes a while
File
On Mon, 13 Jul 2015, mmarco wrote:
Related to that, i think the current 17? digits are way too much for a
visually nice representation. I would prefear to see 1.4142...
than 1.414213562373095? inside an expression.
OK for me. But I would like to have a setting for default length; I have
In gentoo, for instance, there is a file that you edit to add the licenses that
you accept. That way the package manager knows which packages can be installed
and which can't.
I don't know if that kind of system would work for sage, but it does work
pretty well for gentoo.
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You received
I have try to install sage (the current stable version 6.7) in Mac OSX
11.11 (El Capitan), public beta (the final version will be available after
the summer).
I have tried with both
*sage-6.7-x86_64-Darwin-OSX_10.10_x86_64.dmg
Hi!
On 2015-07-13, Nathann Cohen nathann.co...@gmail.com wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an algebraic value
1.414213562373095?
It is true that this final '?' sounds more like a '...', as if some additional
digits were hidden in
I agree with Simon, although finding a nice expression like sqrt(2)+3^(1/3)
can be very costly deppending on how the algebraic number was constructed.
Anyways we could have such an expression for the cases where it is evident
from the number construction.
Related to that, i think the current
I agree with Simon, although finding a nice expression like sqrt(2)+3^(1/3)
can be very costly deppending on how the algebraic number was constructed.
Yepyep. As Simon said we cannot always express algebraic numbers in
such a nice way, though. Well, if you want to build such an object
*in
Confirmed, this is http://trac.sagemath.org/ticket/18891
Run sage -i jmol to fix it for now.
On Monday, July 13, 2015 at 7:14:03 PM UTC+2, rt. wrote:
this is a newly built version together with gentoo, while the other
functions works well with only 3d plot failed.
As I excute the following
Jonas -- the implementation of QQbar elements is precisely via real
intervals and a polynomial satisfied by the number (not always the min poly
unless that is forced, since that can be expensive).
This I think that the only issue is in how real interval field elements are
represented. No-one (or
On Monday, 13 July 2015 18:49:48 UTC+1, William wrote:
On Mon, Jul 13, 2015 at 10:15 AM, Simon King simon...@uni-jena.de
javascript: wrote:
Hi!
On 2015-07-13, Nathann Cohen nathan...@gmail.com javascript: wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
On Monday, 13 July 2015 11:08:02 UTC+1, Simon King wrote:
Hi Volker,
On 2015-07-13, Volker Braun vbrau...@gmail.com javascript: wrote:
You can use tor (https://www.torproject.org) to access the entire
internet
or gmane (http://dir.gmane.org/gmane.comp.mathematics.sage.devel)
Hi rt,
sage-on-gentoo bugs are best discussed in a github issue unless you
can reproduce it in a “vanilla” sage build. Github issue for sage-on-gentoo:
https://github.com/cschwan/sage-on-gentoo/issues
Funny that your message lead Volker to something that was wrong
in vanilla when your problem
¿¡Qué estás diciendo!?
On Monday, July 13, 2015 at 9:14:51 PM UTC+2, Dima Pasechnik wrote:
On Monday, 13 July 2015 18:49:48 UTC+1, William wrote:
On Mon, Jul 13, 2015 at 10:15 AM, Simon King simon...@uni-jena.de
wrote:
Hi!
On 2015-07-13, Nathann Cohen nathan...@gmail.com wrote:
On 13/07/15 19:15, Simon King wrote:
Hi!
On 2015-07-13, Nathann Cohen nathann.co...@gmail.com wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an algebraic value
1.414213562373095?
It is true that this final '?' sounds more like a '...', as if
this is a newly built version together with gentoo, while the other
functions works well with only 3d plot failed.
As I excute the following command:
sage: var('x,y')
sage: plot3d(sin(x*y), (x, -pi, pi), (y, -pi, pi))
it returns :
On 13.07.2015 19:33, Nathann Cohen wrote:
I agree with Simon, although finding a nice expression like sqrt(2)+3^(1/3)
can be very costly deppending on how the algebraic number was constructed.
Yepyep. As Simon said we cannot always express algebraic numbers in
such a nice way, though.
On Mon, Jul 13, 2015 at 10:15 AM, Simon King simon.k...@uni-jena.de wrote:
Hi!
On 2015-07-13, Nathann Cohen nathann.co...@gmail.com wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an algebraic value
1.414213562373095?
It is true that this
Le 13/07/2015 10:36, michele.bora...@imtlucca.it a écrit :
Hi all!
My name is Michele Borassi, and I recently entered this great community
for a Google Summer of Code project.
Among other works, I am including in Sage an algorithm for computing the
Cuthill-McKee and the King orderings [1,2],
Hello everybody!
In a recent thread [1], Nils Bruin mentionned that the default representation of
algebraic numbers does not really inspire trust:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an algebraic value
1.414213562373095?
It is true that this
On 2015-07-13 21:55, Bill Hart wrote:
The elements of QQbar are the solutions of algebraic equations. As you
probably know, the solutions of algebraic equations of degree 4
can, in general, not be expressed that nicely.
This is slightly incorrect. The general quintic can be solved
On Monday, 13 July 2015 22:07:46 UTC+2, Jeroen Demeyer wrote:
On 2015-07-13 21:55, Bill Hart wrote:
The elements of QQbar are the solutions of algebraic equations. As
you
probably know, the solutions of algebraic equations of degree 4
can, in general, not be expressed
On Monday, 13 July 2015 19:15:40 UTC+2, Simon King wrote:
Hi!
On 2015-07-13, Nathann Cohen nathan...@gmail.com javascript: wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an algebraic value
1.414213562373095?
It is true that
On 13/07/15 19:48, Jonas Jermann wrote:
On 13.07.2015 19:33, Nathann Cohen wrote:
I agree with Simon, although finding a nice expression like
sqrt(2)+3^(1/3)
can be very costly deppending on how the algebraic number was
constructed.
Yepyep. As Simon said we cannot always express algebraic
On Monday, 13 July 2015 20:30:34 UTC+1, Volker Braun wrote:
¿¡Qué estás diciendo!?
So that '¿' indicates the beginning of the questionable part!
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Hi Bill,
On 2015-07-13, Bill Hart goodwillh...@googlemail.com wrote:
On Monday, 13 July 2015 19:15:40 UTC+2, Simon King wrote:
On 2015-07-13, Nathann Cohen nathan...@gmail.com javascript: wrote:
sage: sqrt(2) # a symbolic ring element
sqrt(2)
sage: QQbar(sqrt(2)) # an
This is ticket http://trac.sagemath.org/ticket/18892 and it has been solved
earlier
today and incidentally in April in sage-on-gentoo.
You can just copy the patch
this seems not to be my case, as François said, this problem should have
been posted for sage-on-gentoo, while I haven't realized it before.
Thank you all the same!
在 2015年7月14日星期二 UTC+8上午1:37:06，Volker Braun写道：
Confirmed, this is http://trac.sagemath.org/ticket/18891
Run sage -i jmol to fix
It's strange that all the file in the directory is empty，and I find
scene.spt.zip
in the subdirectory，but when try to display it directly with Jmol:
jmol /root/.sage/temp/rt./29736/dir_fz8ajw/scene.spt.zip
First I would try to use sage as your regular user, then we can talk about
any problems arising.
François
On 14/07/2015, at 13:27, rt. rtgisk...@gmail.com wrote:
It's strange that all the file in the directory is empty，and I find
scene.spt.zip
in the subdirectory，but when try to display
I think your problem is because you are running sage as root, but from a
normal user session. The big clue is that your $DOT_SAGE folder is
“/root/.sage”. Please try as a normal user.
François
On 14/07/2015, at 13:14, rt. rtgisk...@gmail.com wrote:
this seems not to be my case, as François
I just switch to a normal user, it still returns the same error. And before
this, I am always using root to do the daily job, and sage works well.
(just for convinience, these days I'm considering rearrange my system, and
maybe, a normal user will be applied to do the daily job)
thanks! :)
在
What about posting /root/.sage/temp/rt./12958/tmp_KGOIjb.txt” or its
equivalent when run
as a normal user?
I will only be able to test this tomorrow when I get physical access to a
machine with sage-on-gentoo.
François
On 14/07/2015, at 13:35, rt. rtgisk...@gmail.com wrote:
I just switch
when excuted as a regular user, this file still comes with empty contents.
It's indeed no easy to diagnose sage-on-gentoo with no sage-on-gentoo on
the computer, now that
I have got to know the more appropriate place to report the bug, I'd better
to file bugs there later.
thanks! :)
在
On Sunday, 12 July 2015 20:59:40 UTC+1, Nathann Cohen wrote:
We, European devs, have benefited from NSF funding for Sage in
numerous occasions (Sage days, visits, ...) when we had no funding
here.
You are speaking in your own name only. You are not the Europeans
Devs, are are not
On Sun, Jul 12, 2015 at 6:02 AM, Jeroen Demeyer jdeme...@cage.ugent.be
wrote:
On 2015-07-12 03:40, R. Andrew Ohana wrote:
In addition, boxen.math.washington.edu
http://boxen.math.washington.edu will finally be going offline, and
due to lack of space won't be coming back (at least for now).
On Monday, 13 July 2015 08:11:45 UTC+1, Dima Pasechnik wrote:
On Sunday, 12 July 2015 20:59:40 UTC+1, Nathann Cohen wrote:
We, European devs, have benefited from NSF funding for Sage in
numerous occasions (Sage days, visits, ...) when we had no funding
here.
You are speaking in
Nicolas did not put 'the' after 'we'; do not twist his words please.
What he wrote is a correct statement.
You are amazing, guys.
Nathann
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You can use tor (https://www.torproject.org) to access the entire internet
or gmane (http://dir.gmane.org/gmane.comp.mathematics.sage.devel)
specifically for sage-devel.
Realistically, the Chinese government is always going to block mass
communication utilities that are not under their
I was asked to make a code that iterates over all matrices of given type
and size. And once again I see a memory leak. Here's an example code
n = 7
m = Integer(n*(n-1)/2)
for i in IntegerRange(2^m):
d = i.digits(base=2, padto=m)
l = [[1]+[0]*(n-1)]
for j in range(n-1):
there were unconfirmed reports of an 1-person demonstration in front of the
US Embassy
in Paris, with a banner saying Sage Days are a waste of US taxpayer's
money! Stop them now!
Don't trust anybody who claims to have seen me in Paris. They are liars.
Though on the other hand that would
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