> On Oct 27, 2016, at 10:47, William Stein wrote:
>
> Just curious: what choice does magma (or maple or Mathematica etc) make
> regarding this?
Magma acts as follows, when the matrices are square, but different sizes, or
when one or both are non-square:
> M1:=Matrix(ZZ,2,2,[1,2,3,4]);
> M2:
On Thursday, October 27, 2016 at 2:42:56 PM UTC-7, Travis Scrimshaw wrote:
>
>
>
> On Thursday, October 27, 2016 at 2:12:01 PM UTC-5, William wrote:
>>
>> On Thu, Oct 27, 2016 at 11:25 AM, kcrisman wrote:
>> >
>> >
>> > On Thursday, October 27, 2016 at 2:11:58 PM UTC-4, John H Palmieri
>> wr
On Thursday, October 27, 2016 at 2:12:01 PM UTC-5, William wrote:
>
> On Thu, Oct 27, 2016 at 11:25 AM, kcrisman > wrote:
> >
> >
> > On Thursday, October 27, 2016 at 2:11:58 PM UTC-4, John H Palmieri
> wrote:
> >>
> >> (1) Why should a nonsquare matrix even have an "is_similar" method? Ca
Well, Python isn't exactly efficient when it comes to system calls...
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To p
This is more what concerns me:
~$ strace sage-7.4 -c pass 2>a
~$ wc -l a
35137
~$ grep stat a |wc -l
8712
~$ grep open a |wc -l
10289
~$ grep read a |wc -l
5645
etc.
I was wrong -- its "only" 8712 stats.
Anyway, I probably just need to tweak os caching parameters or the
disk, since of course w
Le jeudi 27 octobre 2016 21:22:23 UTC+2, Eric Gourgoulhon a écrit :
>
> Hi,
>
> Which computer are you using? On my 5-years old laptop (Core i5-2410M + 4
> GB memory), it takes "only" 22 seconds. Running a second *time* takes 1.4
> second.
>
> Best regards,
>
> Eric.
>
>
>
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On 27 October 2016 at 20:08, William Stein wrote:
> Does anybody else find this depressing?
>
> ⨯ time sage-7.4 -c pass
> 2.18user 0.99system 0:34.29elapsed 9%CPU (0avgtext+0avgdata
> 170712maxresident)k
> 285672inputs+8outputs (628major+49021minor)pagefaults 0swaps
>
> 35 seconds?
>
> Yes, I kno
Hi,
Which computer are you using? On my 5-years old laptop (Core i5-2410M + 4
GB memory), it takes "only" 22 seconds. Running a second takes 1.4 second.
Best regards,
Eric.
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In case anybody cares, in Sage-7.4 this bug remains
https://github.com/jupyterhub/jupyterhub/issues/401
which blocks 3d graphics in jupyter/sage working at all for sage and
jupyter hub:
https://github.com/sagemathinc/smc/issues/159
It seems like according to
https://github.com/jupyterhub/
On Thu, Oct 27, 2016 at 11:25 AM, kcrisman wrote:
>
>
> On Thursday, October 27, 2016 at 2:11:58 PM UTC-4, John H Palmieri wrote:
>>
>> (1) Why should a nonsquare matrix even have an "is_similar" method? Can we
>> get rid of that? (Same for "determinant" and some other methods.)
>
>
> Those are no
Does anybody else find this depressing?
⨯ time sage-7.4 -c pass
2.18user 0.99system 0:34.29elapsed 9%CPU (0avgtext+0avgdata 170712maxresident)k
285672inputs+8outputs (628major+49021minor)pagefaults 0swaps
35 seconds?
Yes, I know, doing it again is fast, since it can stat 100K files
using the cac
The machine hosting trac did change recently.
On 27 October 2016 at 19:17, jhonrubia6 wrote:
> After working on ticket #21052, I committed the changed file and tried to
> git trac push and get the error
>
> git_trac.git_error.GitError: git returned with non-zero exit code (128) when
> executing "
On 27 October 2016 at 18:47, William Stein wrote:
> Just curious: what choice does magma (or maple or Mathematica etc) make
> regarding this?
Using Magma V2.22-3 I am not impressed:
> A:=Matrix([[1,2],[3,4]]);
> B:=Matrix([[1,2],[3,4]]);
> Parent(A);
Full Matrix Algebra of degree 2 over Integer
On Thursday, October 27, 2016 at 2:11:58 PM UTC-4, John H Palmieri wrote:
>
> (1) Why should a nonsquare matrix even have an "is_similar" method? Can we
> get rid of that? (Same for "determinant" and some other methods.)
>
Those are not even the most annoying methods like this throughout Sage t
After working on ticket #21052, I committed the changed file and tried to
git trac push and get the error
git_trac.git_error.GitError: git returned with non-zero exit code (128)
when executing "git push trac
HEAD:refs/heads/u/jhonrubia6/add_pictures_to_implicit_plot3d_py"
STDERR: @
> So either they will stop distribute R or they will patch
>> en-masse.
>>
>
> Somehow, I doubt it.
>
>
Probably nobody even bothered to notice or notify e.g. Debian?
Thanks for working on this; how annoying.
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(1) Why should a nonsquare matrix even have an "is_similar" method? Can we
get rid of that? (Same for "determinant" and some other methods.)
(2) What is the definition of similar?
(a) Two matrices M and N, both square of the same size, are similar iff
there is an invertible matrix P so that M
See https://trac.sagemath.org/ticket/21777 for a surprising (to me) relict
of what appears to be coercion failure - I don't know who is around who is
an expert in this and might be able to diagnose it, hopefully someone here
is.
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Mathematica doesn't seem to have such a function for checking similarity.
Maple returns false. I don't know for magma.
Best,
Travis
On Thursday, October 27, 2016 at 12:47:29 PM UTC-5, William wrote:
>
> Just curious: what choice does magma (or maple or Mathematica etc) make
> regarding this?
On 10/27/2016 12:21 PM, Travis Scrimshaw wrote:
> I am for BB because:
>
Both options have merit. If most people think we should have a
user-friendly error for a common mistake (mismatched dimensions), then
maybe it makes sense to add an ignore_dims (default: False) parameter
for the people who e
Just curious: what choice does magma (or maple or Mathematica etc) make
regarding this?
On Thursday, October 27, 2016, Dima Pasechnik wrote:
> AA
> (but make sure docs make sense after the change)
>
> On Thursday, October 27, 2016 at 4:21:02 PM UTC, Travis Scrimshaw wrote:
>>
>> I am for BB bec
factorisation of multivariate polynomials is very slow. This is a fact of
life.
On Thursday, October 27, 2016 at 9:38:48 AM UTC, Jori Mäntysalo wrote:
>
> On Thu, 27 Oct 2016, Vincent Delecroix wrote:
>
> > Concerning your code, it got stuck on the first run? What is the
> > degree of the polyn
AA
(but make sure docs make sense after the change)
On Thursday, October 27, 2016 at 4:21:02 PM UTC, Travis Scrimshaw wrote:
>
> I am for BB because:
>
> 1 - the definition (as even given in the docstring) still makes full sense
> if the matrices are not the same size or if they are not square. T
I am for BB because:
1 - the definition (as even given in the docstring) still makes full sense
if the matrices are not the same size or if they are not square. There does
not exist such a matrix P.
2 - It puts an unnecessary burden on the average user. They have to deal
with errors on a true/f
On Thursday, October 27, 2016 at 5:28:41 PM UTC+2, William wrote:
>
> On Thu, Oct 27, 2016 at 8:25 AM, Jean-Pierre Flori > wrote:
> >
> >
> > On Thursday, October 27, 2016 at 5:16:02 PM UTC+2, Jean-Pierre Flori
> wrote:
> >>
> >> But you're right, by default Debian links to openssl:
> >>
On Thu, Oct 27, 2016 at 8:25 AM, Jean-Pierre Flori wrote:
>
>
> On Thursday, October 27, 2016 at 5:16:02 PM UTC+2, Jean-Pierre Flori wrote:
>>
>> But you're right, by default Debian links to openssl:
>> https://packages.debian.org/sid/libcurl3
>>
>> And indeed curl is not GPL anyway:
>> https://cu
On Thursday, October 27, 2016 at 5:23:58 PM UTC+2, William wrote:
>
> Hi,
>
>
>
> We've been down this road before with Sage, and it's pretty annoying.
> I've personally wasted hundreds of hours on it (GNUtls, openssl, etc.)
> Programmers playing lawyers have ended up with a broken and
> i
On Thursday, October 27, 2016 at 5:16:02 PM UTC+2, Jean-Pierre Flori wrote:
>
> But you're right, by default Debian links to openssl:
> https://packages.debian.org/sid/libcurl3
>
> And indeed curl is not GPL anyway:
> https://curl.haxx.se/docs/copyright.html
> Groumpf.
> See https://curl.haxx.s
On Thursday, October 27, 2016 at 5:18:40 PM UTC+2, Emmanuel Charpentier
wrote:
>
>
>
> Le jeudi 27 octobre 2016 17:00:05 UTC+2, Jean-Pierre Flori a écrit :
>>
>>
>>
>> On Thursday, October 27, 2016 at 4:59:02 PM UTC+2, Jean-Pierre Flori
>> wrote:
>>>
>>>
>>>
>>> On Thursday, October 27, 2016 at
Hi,
We've been down this road before with Sage, and it's pretty annoying.
I've personally wasted hundreds of hours on it (GNUtls, openssl, etc.)
Programmers playing lawyers have ended up with a broken and
inconsistent legal foundation. There is no easy way out, since only
copyright owners can c
But you're right, by default Debian links to openssl:
https://packages.debian.org/sid/libcurl3
And indeed curl is not GPL anyway: https://curl.haxx.se/docs/copyright.html
Groumpf.
See https://curl.haxx.se/legal/distro-dilemma.html for more rumbling.
Now what if a GPL application links to libcurl
Le jeudi 27 octobre 2016 17:00:05 UTC+2, Jean-Pierre Flori a écrit :
>
>
>
> On Thursday, October 27, 2016 at 4:59:02 PM UTC+2, Jean-Pierre Flori wrote:
>>
>>
>>
>> On Thursday, October 27, 2016 at 4:49:23 PM UTC+2, Emmanuel Charpentier
>> wrote:
>>>
>>>
>>>
>>> Le jeudi 27 octobre 2016 16:04:52
Le jeudi 27 octobre 2016 16:59:02 UTC+2, Jean-Pierre Flori a écrit :
>
>
>
> On Thursday, October 27, 2016 at 4:49:23 PM UTC+2, Emmanuel Charpentier
> wrote:
>>
>>
>>
>> Le jeudi 27 octobre 2016 16:04:52 UTC+2, Jean-Pierre Flori a écrit :
>>>
>>>
>>>
>>> On Thursday, October 27, 2016 at 3:59:26
On Thursday, October 27, 2016 at 4:59:02 PM UTC+2, Jean-Pierre Flori wrote:
>
>
>
> On Thursday, October 27, 2016 at 4:49:23 PM UTC+2, Emmanuel Charpentier
> wrote:
>>
>>
>>
>> Le jeudi 27 octobre 2016 16:04:52 UTC+2, Jean-Pierre Flori a écrit :
>>>
>>>
>>>
>>> On Thursday, October 27, 2016 at 3
On Thursday, October 27, 2016 at 4:49:23 PM UTC+2, Emmanuel Charpentier
wrote:
>
>
>
> Le jeudi 27 octobre 2016 16:04:52 UTC+2, Jean-Pierre Flori a écrit :
>>
>>
>>
>> On Thursday, October 27, 2016 at 3:59:26 PM UTC+2, Emmanuel Charpentier
>> wrote:
>>>
>>>
>>>
>>> Le jeudi 27 octobre 2016 13:1
Le jeudi 27 octobre 2016 16:04:52 UTC+2, Jean-Pierre Flori a écrit :
>
>
>
> On Thursday, October 27, 2016 at 3:59:26 PM UTC+2, Emmanuel Charpentier
> wrote:
>>
>>
>>
>> Le jeudi 27 octobre 2016 13:10:17 UTC+2, François a écrit :
>>>
>>> It is a most interesting point because it explain why
>>>
On Thursday, October 27, 2016 at 3:59:26 PM UTC+2, Emmanuel Charpentier
wrote:
>
>
>
> Le jeudi 27 octobre 2016 13:10:17 UTC+2, François a écrit :
>>
>> It is a most interesting point because it explain why
>> the R binary installed from epel for RH7.1 and family
>> isn’t linked to openssl.
>
Building R against a ssl-less libcurl works (modulo patching configure) and
does not seem to add errors into R's test suite.
So I suggest the following:
[123]:
* add curl as a standard package and let it use ssl if present except when
making dist tarballs (ticket needs some tweaking in case of di
Le jeudi 27 octobre 2016 13:10:17 UTC+2, François a écrit :
>
> It is a most interesting point because it explain why
> the R binary installed from epel for RH7.1 and family
> isn’t linked to openssl.
>
How old is RH7.1 ? The introduction of the libcurl requirement dates from
the R 3.3.0 rel
+1 on AA.
Florent
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https://trac.sagemath.org/ticket/21772
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On Thu, Oct 27, 2016 at 4:48 AM, Frédéric Chapoton wrote:
> Hello,
>
> on https://trac.sagemath.org/ticket/18505, we are trying to enhance the
> is_similar method of matrices.
>
> Because we cannot agree, we require your vote on the following matter:
>
> 1) When M.is_similar(N) is called and eithe
It is a most interesting point because it explain why
the R binary installed from epel for RH7.1 and family
isn’t linked to openssl.
If they don’t have a rock solid argument, and even if they
have, there may not be anymore official R packages from big
league binary distros. Unless they patch R, t
Agreed: AA.
On Oct 27, 2016 04:53, "Vincent Delecroix" <20100.delecr...@gmail.com>
wrote:
> me too: AA
>
> --
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On Thursday, October 27, 2016 at 12:31:00 PM UTC+2, Jeroen Demeyer wrote:
>
> On 2016-10-27 12:24, Francois Bissey wrote:
> > While not configurable by the user in R-3.2.x it would build if
> > libcurl wasn’t found or missing https support.
> > The change to bail out if you don’t fulfil all th
Le jeudi 27 octobre 2016 12:28:57 UTC+2, Jean-Pierre Flori a écrit :
>
>
>
> On Thursday, October 27, 2016 at 12:22:37 PM UTC+2, Emmanuel Charpentier
> wrote:
>>
>> I'm afraid that we don't have much say in the matter : the R core
>> development team has choosen to rely on curl, and their build
On 2016-10-27 12:24, Francois Bissey wrote:
While not configurable by the user in R-3.2.x it would build if
libcurl wasn’t found or missing https support.
The change to bail out if you don’t fulfil all the condition appear
deliberate to me. And I see the point from a support point of view.
My co
On Thursday, October 27, 2016 at 12:22:37 PM UTC+2, Emmanuel Charpentier
wrote:
>
> I'm afraid that we don't have much say in the matter : the R core
> development team has choosen to rely on curl, and their build system will
> fail without it. Furthermore, among those 9402 packages, a lot of
While not configurable by the user in R-3.2.x it would build if
libcurl wasn’t found or missing https support.
The change to bail out if you don’t fulfil all the condition appear
deliberate to me. And I see the point from a support point of view.
My conclusion is that R developers would fill it a
I'm afraid that we don't have much say in the matter : the R core
development team has choosen to rely on curl, and their build system will
fail without it. Furthermore, among those 9402 packages, a lot of them may
have choosen to follow R "guidance" an use CURL.
If we choose to use another lib
On Thursday, October 27, 2016 at 12:02:42 PM UTC+2, Jeroen Demeyer wrote:
>
> On 2016-10-27 11:49, Jean-Pierre Flori wrote:
> >
> >
> > On Thursday, October 27, 2016 at 11:41:20 AM UTC+2, Jeroen Demeyer
> wrote:
> >
> > On 2016-10-27 11:29, Francois Bissey wrote:
> > > R package s
Le jeudi 27 octobre 2016 11:29:12 UTC+2, François a écrit :
>
> R package system include downloading facility from repositories.
> That’s why you need curl. At least in theory.
>
In practice, web access to (a lot of) data repositories, databases, etc...
is more and more used : there is no poi
My own examination of R-3.3.1 configure script is that configure will
fail if libcurl 7.28+ is not present or present with ssl disabled
[m4/R.m4 line 4215 thereafter].
Unless the code for `install.package` has significantly changed between
3.2.x and 3.3.x it is an unnecessary failure dictated by an
As of this morning, CRAN offered 9402 packages... These packages offer
practical implementations for a tremendous list of applied statistics
problems (and more...).
Using R "without its packaging system" is about as useful as using Python
without pip or any other Python packaging system...
--
On 2016-10-27 11:49, Jean-Pierre Flori wrote:
On Thursday, October 27, 2016 at 11:41:20 AM UTC+2, Jeroen Demeyer wrote:
On 2016-10-27 11:29, Francois Bissey wrote:
> R package system include downloading facility from repositories.
That's fine but it should be possible to just run
On Thursday, October 27, 2016 at 11:41:20 AM UTC+2, Jeroen Demeyer wrote:
>
> On 2016-10-27 11:29, Francois Bissey wrote:
> > R package system include downloading facility from repositories.
>
> That's fine but it should be possible to just run R without it's
> packaging system.
>
Then I sugg
On 2016-10-27 11:29, Francois Bissey wrote:
R package system include downloading facility from repositories.
That's fine but it should be possible to just run R without it's
packaging system.
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On Thu, 27 Oct 2016, Vincent Delecroix wrote:
Concerning your code, it got stuck on the first run? What is the
degree of the polynomial you are trying to factorize?
It stucks in every run. You can run my test code, it does not take so
long.
Degree is 199. And I have no idea about the algori
R package system include downloading facility from repositories.
That’s why you need curl. At least in theory.
I’ll have to check for 3.3.x but there was alternatives in 3.2.x.
François
> On 27/10/2016, at 22:26, Jeroen Demeyer wrote:
>
> This is the obvious answer:
>
>> [6] or patch R not to
This is the obvious answer:
[6] or patch R not to use curl
Why should I need a web download tool to do calculations in statistics?
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On 27 October 2016 at 11:21, Jori Mäntysalo wrote:
> On Thu, 27 Oct 2016, Vincent Delecroix wrote:
>
>> 1) What is [a, b, c, d, e]?
>
>
> Arghs, forgot the definition list:
>
> R. = QQ['a, b, c, d, e']
>
>> 2) Your would better replace
>>
>> [a, b, c, d, e][randint(0,4)]
>>
>> by
>>
>> choice([a
On Thu, 27 Oct 2016, Vincent Delecroix wrote:
1) What is [a, b, c, d, e]?
Arghs, forgot the definition list:
R. = QQ['a, b, c, d, e']
2) Your would better replace
[a, b, c, d, e][randint(0,4)]
by
choice([a,b,c,d,e])
That means using plain Python function to get a random number. I don
1) What is [a, b, c, d, e]?
2) Your would better replace
[a, b, c, d, e][randint(0,4)]
by
choice([a,b,c,d,e])
On 27 October 2016 at 10:00, Jori Mäntysalo wrote:
> As we now have Singular 4, I just made a little random test:
>
> set_random_seed(0)
> for i in range(1000):
> P = 1
>
me too: AA
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Hello,
on https://trac.sagemath.org/ticket/18505, we are trying to enhance the
*is_similar* method of matrices.
Because we cannot agree, we require your vote on the following matter:
1) When M.is_similar(N) is called and either M or N is not square:
A) raise an helpful specific error message
B
Here's a quite popular service to share Jupyter notebooks together
with a preset environment (e.g., a SageMath kernel) :
http://mybinder.org/
Quite a different workflow compared to sharing a notebook on a SageNB
server, though.
Luca
On Thu, Oct 27, 2016 at 7:11 AM, Jori Mäntysalo wrote:
>
Hi all,
The latest R versions depends on libcurl and actually more than that: on a
libcurl with https support.
So we might want to build our own libcurl with https support (see #21767)
but we then need an SSL/TLS implementation which Sage curretnly provides
only optionally through openSSL becau
As we now have Singular 4, I just made a little random test:
set_random_seed(0)
for i in range(1000):
P = 1
while random() < 0.9:
M = (randint(1, 5) * ([a, b, c, d, e][randint(0, 4)])^randint(1, 5))
A = (randint(1, 5) * ([a, b, c, d, e][randint(0, 4)])^randint(1, 5))
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