On Mon, Jun 30, 2014 at 3:00 AM, Dima Pasechnik wrote:
> On 2014-06-30, Nathann Cohen wrote:
>> Hello everybody !
>>
>> Here is the problem : we need in the designs code a table of 10 000
>> integers available in a book. I turned this into a file.
>>
>> 1) It would be ugly to copy/paste that in t
On 2014-06-30, Salvatore Giorgi wrote:
> I am a PhD student in electrical engineering and wanted to contribute to
> Sage. As my research is in controls, I thought a control systems toolbox,
> similar to Matlab or Maple, might be interesting. Is this something Sage
> would want?
>
> I know ar
On Mon, Jun 30, 2014 at 10:18 PM, Morteza Milani wrote:
> Hi William,
>
> Do you think you can enable network access for my project with id
> "eda0377d-48b9-456f-8ddf-b8add11febf6" ?
Done.
> I work on protein structures and I usually need to download protein data
> files from rcsb.org.
Cool.
Just curious about a new article just read, Jacobi Iterative Method: 19th
Century Math Gets A 21st Century Makeover:
http://www.science20.com/news_articles/jacobi_iterative_method_19th_century_math_gets_a_21st_century_makeover-139626
where speed improved 200 times.
-Steve
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Depends on what "related" means, really. Ideally you have a directed graph
of dependencies a->b->c. If you can't order the tickets then really you
only have one ticket.
If you haven't shared the branches yet then it would be nice to clean up
the commits, but its in no way required. Don't rewri
On Monday, June 30, 2014 10:24:39 AM UTC-7, William wrote:
>
> On Mon, Jun 30, 2014 at 9:29 AM, Ondřej Čertík > wrote:
> > Thanks Volker for the tip, that does the job. More comments below:
>
> Another comment. Evidently Sage uses **Maxima** for
> rational_simplify, hence the integer factori
Hello,
I am a PhD student in electrical engineering and wanted to contribute to
Sage. As my research is in controls, I thought a control systems toolbox,
similar to Matlab or Maple, might be interesting. Is this something Sage
would want?
I know are already similar toolboxes written in Pytho
Dear all,
James Campbell and I have been working on 3 related tickets
(http://trac.sagemath.org/ticket/16331,
http://trac.sagemath.org/ticket/16332,
http://trac.sagemath.org/ticket/16333).
We pushed 16332 to trac a while ago and have an almost positive review and
have since been busy with 163
On Mon, Jun 30, 2014 at 11:23 AM, William Stein wrote:
> On Mon, Jun 30, 2014 at 9:29 AM, Ondřej Čertík
> wrote:
>> Thanks Volker for the tip, that does the job. More comments below:
>
> Another comment. Evidently Sage uses **Maxima** for
> rational_simplify, hence the integer factorization tha
Hi,
Sage Days 59 is about to wrap up. A few bugs were fixed and are awaiting
review on Trac:
http://trac.sagemath.org/query?status=needs_info&status=needs_review&keywords=~sd59
Please take a few moments to check that list and review some patches. It would
be a shame to let them bitrot.
On
On Mon, Jun 30, 2014 at 9:29 AM, Ondřej Čertík wrote:
> Thanks Volker for the tip, that does the job. More comments below:
Another comment. Evidently Sage uses **Maxima** for
rational_simplify, hence the integer factorization that is required to
do this is not-surprisingly insanely stupidly slow
Thanks Volker for the tip, that does the job. More comments below:
On Sun, Jun 29, 2014 at 11:52 PM, John Cremona wrote:
> Be careful though:
>
> sage: (sqrt(-2)*sqrt(-3)).simplify_radical()
> -sqrt(3)*sqrt(2)
>
> i.e. you cannot use sqrt(a)*sqrt(b)=sqrt(a*b) everywhere without
> reaching a contr
On Mon, Jun 30, 2014 at 1:04 AM, Nathann Cohen wrote:
> Hello everybody !
>
> Here is the problem : we need in the designs code a table of 10 000 integers
> available in a book. I turned this into a file.
>
> 1) It would be ugly to copy/paste that in the python code
> 2) I created a .txt file in c
On Monday, June 30, 2014 1:52:50 AM UTC-4, John Cremona wrote:
>
> Be careful though:
>
> sage: (sqrt(-2)*sqrt(-3)).simplify_radical()
> -sqrt(3)*sqrt(2)
>
> i.e. you cannot use sqrt(a)*sqrt(b)=sqrt(a*b) everywhere without
> reaching a contradiction.
>
> sage: bool( (sqrt(-2)*sqrt(-3)) == sq
That sounds OK -- yes, it must be possible to return the content as a
number without any complicated construction, especially as the content
(as a number) will be returned by some lower-level library such as
FLINT.
John
On 30 June 2014 08:53, Vincent Delecroix <20100.delecr...@gmail.com> wrote:
>
On Monday, June 30, 2014 6:29:07 AM UTC-4, Dima Pasechnik wrote:
>
> Or, maybe it can be made a Python pickle?
>
Why? To make loading marginally faster?
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What about making it a sage object (.sobj), as in the conway polynomial
database? Look its spkg-install, of course it may be a new spkg but if it
is just data I don't see why we cannot fast track it to standard.
François
On 30/06/2014, at 22:36, Nathann Cohen wrote:
>> well, 500 lines of number
> well, 500 lines of numbers. That's OK.
> Or, maybe it can be made a Python pickle?
I would say that a pickly is the same as a .txt, isn't it ? That you
cannot load it at runtime unless it is in SAGE_SHARED.
But you are probably right with the python file. Best and easiest ?...
Nathann
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You
On 2014-06-30, Nathann Cohen wrote:
>> IMHO it's OK to have it in a .py(x) file...
>
> http://www.steinertriples.fr/ncohen/tmp/MOLS_table.txt
>
> Imagine this with a fixed line with of 80 :-P
well, 500 lines of numbers. That's OK.
Or, maybe it can be made a Python pickle?
>
> Nathann
>
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You r
> IMHO it's OK to have it in a .py(x) file...
http://www.steinertriples.fr/ncohen/tmp/MOLS_table.txt
Imagine this with a fixed line with of 80 :-P
Nathann
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On 2014-06-30, Nathann Cohen wrote:
> Hello everybody !
>
> Here is the problem : we need in the designs code a table of 10 000
> integers available in a book. I turned this into a file.
>
> 1) It would be ugly to copy/paste that in the python code
IMHO it's OK to have it in a .py(x) file...
> 2)
Yo !
> The reviewer strongly supports the idea of having it in standard!
Yep sorry, the message could appear to imply the opposite ^^;
It is just that it really takes a lot of time to add 10 000 integers in Sage -_-
Nathann
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Hello,
The reviewer strongly supports the idea of having it in standard!
Vincent
PS: ticket number is #16541.
2014-06-30 10:04 UTC+02:00, Nathann Cohen :
> Hello everybody !
>
> Here is the problem : we need in the designs code a table of 10 000
> integers available in a book. I turned this int
Hello everybody !
Here is the problem : we need in the designs code a table of 10 000
integers available in a book. I turned this into a file.
1) It would be ugly to copy/paste that in the python code
2) I created a .txt file in combinat/design/ for this data
3) Turns out that you cannot read a .
Dear John,
Thanks for your answer.
The method content for dense polynomial over ZZ is implemented at a
very low level... I am sure somebody cares about its speed. In
particular, I am not in favour of pol.content().gen() which needs to
build the ideal.
Your flag idea is nice. For the deprecation
I'm not sure about the name content_gen, or whether it is necessary if
pol.content().gen() works. Also, I suspect that there may be quite a
lot of code out there which this change will break. Would it be
possible to make the change you suggest for content() but to have a
parameter flag such as '
Salut Vincent,
I was tempted to open a ticket for this "bug" (or is it a feature?), so
I am very much in favor of your proposition!
Best wishes,
Bruno
Le dim. 29 juin 2014 23:32:42 CEST, Vincent Delecroix a écrit :
Hello,
While reviewing #16516 I bumped into the following bug
{{{
sage: R. =
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