On Apr 20, 6:18 pm, Ryan Grout wrote:
> Hi,
>
> Am I the only one seeing a funny starting page on wiki.sagemath.org?
FWIW, Keshav Kini's excellent "sagebot" in the IRC channel (sagemath)
reports every time the main Trac wiki page is edited.
In this case:
[18:11] New news from tractimeline: Tic
Does hitting Enter again not do it?
David
On Wed, Apr 20, 2011 at 22:04, Francois Bissey <
francois.bis...@canterbury.ac.nz> wrote:
> > On Wed, Apr 20, 2011 at 06:41:26PM -0700, François wrote:
> > > > This test reduces to:
> > > >
> > > > sage: class CCls(Parent):
> > > > ... def
Hi,
I noticed that Martin started work on a SCIP wrapper for SAGE.
http://trac.sagemath.org/sage_trac/ticket/10879
I wanted to add two other ideas for interfacing with SCIP that are
written in python:
Numberjack
http://4c110.ucc.ie/numberjack/
python-zibopt
http://code.google.com/p/python
On Apr 20, 2011, at 18:27 , Tom Boothby wrote:
> The spammer's account is named "Lila Marion", can somebody with access
> delete it?
Just tried, and and it seems someone beat me to it!
Justin
--
Justin C. Walker
Curmudgeon-at-large
Director
Institute for the Absorption of Federal Funds
18
> On Wed, Apr 20, 2011 at 06:41:26PM -0700, François wrote:
> > > This test reduces to:
> > >
> > > sage: class CCls(Parent):
> > > ... def __eq__(self, other):
> > > ... return True
> > > sage: x = CCls()
> > > sage: x == None
> > > True
> > >
> > > and I
On Wed, Apr 20, 2011 at 06:41:26PM -0700, François wrote:
> > This test reduces to:
> >
> > sage: class CCls(Parent):
> > ... def __eq__(self, other):
> > ... return True
> > sage: x = CCls()
> > sage: x == None
> > True
> >
> > and I assume you get False ins
On Wed, Apr 20, 2011 at 10:45:03PM +0200, Florent hivert wrote:
> Hi There,
>
> Speaking about hash...
>
> > - Much worst: the Python assumption that the hash value of an object
> >does not change can easily be broken inadvertently, even by a total
> >beginner, by using the rename
On Apr 20, 8:26 pm, "Nicolas M. Thiery"
wrote:
> On Fri, Apr 15, 2011 at 12:40:20PM +1200, Francois Bissey wrote:
> > After a small number of patch (#11156 from Nicolas M. Thiery, and 2 in
> > #9958, one of which is from my friend Steve Trogdon) we have a clear view
> > of what needs to be fixed
The spammer's account is named "Lila Marion", can somebody with access
delete it?
On Wed, Apr 20, 2011 at 6:26 PM, Tom Boothby wrote:
> Thanks Ryan, fixed.
>
> On Wed, Apr 20, 2011 at 6:18 PM, Ryan Grout wrote:
>> Hi,
>>
>> Am I the only one seeing a funny starting page on wiki.sagemath.org?
>>
On Wed, Apr 20, 2011 at 08:46:55AM -0700, Robert Bradshaw wrote:
> Shouldn't the lifting morphism simply be a section of R -> Q? Ideally,
> this could come from Q.coerce_map_from(R).section() in which case it
> would automatically get invoked by R(x).
yes, whenever possible, the lifting morphism s
Thanks Ryan, fixed.
On Wed, Apr 20, 2011 at 6:18 PM, Ryan Grout wrote:
> Hi,
>
> Am I the only one seeing a funny starting page on wiki.sagemath.org?
>
> I see:
>
> http://www.eradicatebedbugs.com - Bed Bug Dog NYC
>
> Here is a
Hi,
Am I the only one seeing a funny starting page on wiki.sagemath.org?
I see:
http://www.eradicatebedbugs.com - Bed Bug Dog NYC
Here is an article through which you will get to know what your dog maybe
called when infected
Hi David!
On Wed, Apr 20, 2011 at 02:29:08PM -0400, David Roe wrote:
>Why not have Q.lift() return the morphism and Q.lift(x) return the
>morphism applied to x? I think I've seen this paradigm applied elsewhere
I am fine with this for backward compatibility in, say,
sage.rings.qu
On Thursday, 21 April 2011 02:45:37 UTC+10, rjf wrote:
>
> I tried
> Do[print[i];If[i>4,Return[toobig]], {i,1,10}]
>
> which failed. So it can't iterate
>
It's lack of basic (working) loop constructions it a bit disheartening.
>
> Nothing on the web site interface can include a left-hand-side
On Wed, Apr 20, 2011 at 1:45 PM, Florent Hivert
wrote:
>
>> - Much worst: the Python assumption that the hash value of an object
>> does not change can easily be broken inadvertently, even by a total
>> beginner, by using the rename feature:
>>
>> sage: K = QQ['x']
>> sage: hash
Hi There,
Speaking about hash...
> - Much worst: the Python assumption that the hash value of an object
>does not change can easily be broken inadvertently, even by a total
>beginner, by using the rename feature:
>
> sage: K = QQ['x']
> sage: hash(K)
> -764788796
On Monday, April 18, 2011 9:53:00 AM UTC-7, Maarten Derickx wrote:
>
> Dear All,
>
> On friday april 22nd from 14:00 GMT there might be some short down
> time of trac.sagemath.org. On this day I will add a new input cell to
> tickets called "dependency's" and make it impossible for people with a
Why not have Q.lift() return the morphism and Q.lift(x) return the morphism
applied to x? I think I've seen this paradigm applied elsewhere
David
On Wed, Apr 20, 2011 at 11:46, Robert Bradshaw wrote:
> On Wed, Apr 20, 2011 at 5:15 AM, Nicolas M. Thiery
> wrote:
> > On Wed, Apr 20, 2011 at 02:3
I tried
Do[print[i];If[i>4,Return[toobig]], {i,1,10}]
which failed. So it can't iterate
I tried
a + f[8] /. f[x_?(# > 7 &)] -> aha
which it refused to parse, much less do pattern matching.
Nothing on the web site interface can include a left-hand-side for
assignment.
While I think this progr
[Please respond on sage-windows...]
On Tue, Apr 19, 2011 at 9:50 PM, Volker Braun wrote:
> If you are fine with using a virtual machine then just punch the notebook
> port through. The only thing running native would be the browser rendering
> the worksheet. Of course you need admin rights to ins
On Wed, Apr 20, 2011 at 9:07 AM, John Cremona wrote:
> Why not move this thread to the sage-windows group?
+1 -- I cross-posted my response there.
>
> John
>
> On Wed, Apr 20, 2011 at 4:38 PM, Dima Pasechnik wrote:
>>
>>
>> On Apr 20, 10:20 pm, RegB <2regburg...@earthlink.net> wrote:
>>> Perhap
Why not move this thread to the sage-windows group?
John
On Wed, Apr 20, 2011 at 4:38 PM, Dima Pasechnik wrote:
>
>
> On Apr 20, 10:20 pm, RegB <2regburg...@earthlink.net> wrote:
>> Perhaps even farther off topic;
>> I doubt that Cygwin (Cygwin/X) is in any case a good path for many/
>> most MS_
On Wed, Apr 20, 2011 at 5:15 AM, Nicolas M. Thiery
wrote:
> On Wed, Apr 20, 2011 at 02:34:49AM -0700, Simon King wrote:
>> * Q.lift(x) should be removed, and the category framework for
>> quotient rings should request a parent method "lifting_morphism"
>> instead of "lift".
>
> For the record, I
On Apr 20, 10:20 pm, RegB <2regburg...@earthlink.net> wrote:
> Perhaps even farther off topic;
> I doubt that Cygwin (Cygwin/X) is in any case a good path for many/
> most MS_Windows
> folk - from THEIR point of view.
> The path to getting Cygwin/X up and running "usefully" on a MS_Windows
> plat
On Tue, Apr 19, 2011 at 9:50 PM, Volker Braun wrote:
> If you are fine with using a virtual machine then just punch the notebook
> port through. The only thing running native would be the browser rendering
> the worksheet.
I think that this is the whole point no matter what approach we take;
the
On Apr 20, 10:20 am, RegB <2regburg...@earthlink.net> wrote:
> Perhaps even farther off topic;
> I doubt that Cygwin (Cygwin/X) is in any case a good path for many/
> most MS_Windows
> folk - from THEIR point of view.
> The path to getting Cygwin/X up and running "usefully" on a MS_Windows
> plat
Perhaps even farther off topic;
I doubt that Cygwin (Cygwin/X) is in any case a good path for many/
most MS_Windows
folk - from THEIR point of view.
The path to getting Cygwin/X up and running "usefully" on a MS_Windows
platform
is long and arduous for the naive user, e.g. it was so for me.
Oracle
On 20 April 2011 01:24, Dan Drake wrote:
> On Tue, 19 Apr 2011 at 11:47PM -0500, Jordi Gutiérrez Hermoso wrote:
>> Given my involvement with Octave, I was considering giving a talk
>> about it, and I wanted to get a feel for how Sage users relate to
>> Octave and what possible topics could be int
On 4/20/11 6:52 AM, jmakov wrote:
Hi.
PROBLEM: sage's web server allows diff passwords for one user
EXAMPLE:
userpassw = "!//chars//number#//string"
//chars is a string of characters e.g. "mypassw"
//number is some number e.g. "123"
using that args the userpassw would be "!mypassw123#mypassw"
Hi Nicolas,
On 20 Apr., 14:39, "Nicolas M. Thiery"
wrote:
> I guess we want to keep temporary backward compatibility and leave
> Q.lift() as an alias Q.lifting_morphim() (with deprecation) in
> sage.rings.quotient_ring?
That is part of the question. My impression is that Q.lift() is not so
often
The whole symja thing is interesting...
how much of Mathematica's syntax are they allowed to copy without breaching
some sort of intellectual property rights?
Since some claims were made about symja's integration capabilities, I tested
a few integrals...
It didn't take long to find simple integ
On Wed, Apr 20, 2011 at 05:33:57AM -0700, Simon King wrote:
> > - In many cases it is convenient to implement lift in the parent.
> > Sometimes because this avoid creating an element class just to put
> > this method there. Sometimes because this method lift is directly
> > constructed as
Hi Nicolas,
On 20 Apr., 14:15, "Nicolas M. Thiery"
wrote:
> For the record, I would keep it, allowing for both x.lift() and
> Q.lift(x), for two reasons:
>
> - In many cases it is convenient to implement lift in the parent.
> Sometimes because this avoid creating an element class just to put
On Wed, Apr 20, 2011 at 02:34:49AM -0700, Simon King wrote:
> * Q.lift(x) should be removed, and the category framework for
> quotient rings should request a parent method "lifting_morphism"
> instead of "lift".
For the record, I would keep it, allowing for both x.lift() and
Q.lift(x), for two re
On Wed, Apr 20, 2011 at 04:52:10AM -0700, jmakov wrote:
> Hi.
>
> PROBLEM: sage's web server allows diff passwords for one user
>
>
> EXAMPLE:
> Now I can login with the following credentials:
> username = user
> password = "!mypassw123#mypassw" #ok since that is user's passw
> username = user
Hi.
PROBLEM: sage's web server allows diff passwords for one user
EXAMPLE:
userpassw = "!//chars//number#//string"
//chars is a string of characters e.g. "mypassw"
//number is some number e.g. "123"
using that args the userpassw would be "!mypassw123#mypassw"
sage: notebook()
2011-04-20 13:25:3
I vote for some material on image processing. For example, material from
http://amath.colorado.edu/courses/5720/2000Spr/Labs/Worksheets/Matlab_tutorial/matlabimpr.html
http://www.math.ucla.edu/~getreuer/matlabimaging.html
or ones of the books
Digital Image Processing Using MATLAB (Gonzalez, etal),
On 04/20/11 11:40 AM, Dr. David Kirkby wrote:
On 04/20/11 10:13 AM, Jason Grout wrote:
Interesting. Looking through the docs to the integration functions leads
to this website with a large number of rules for integration, which
claims that in some cases, it performs much better than MMA and Ma
>
> I've also been thinking about how best to handle spkgs, and Dag
> Seljebotn recently pointed me to
> Nixhttp://nixos.org/nix/https://github.com/dagss/scidist/blob/master/ideas.rst.
> The basic
> idea is that each component is compiled in a directory based on the
> hash of its sources and a
On 04/20/11 10:13 AM, Jason Grout wrote:
On 4/20/11 3:50 AM, Dr. David Kirkby wrote:
This is interesting.
http://code.google.com/p/symja/
Apparently it can parse a large percentage of the Mathematica language
and has nearly 295 functions. I note it has "D[]" and "Integrate[]" as
two of them.
Hi John,
On 20 Apr., 12:02, John Cremona wrote:
> > Let Q be a quotient ring with ambient ring R, and let x be an element
> > of x.
>
> You meant: x is an element of Q.
Sure, thank you!
--
To post to this group, send an email to sage-devel@googlegroups.com
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I agree with your proposal.Would it be too ambiguous to also allow
Q(x) as synonymous for x.lift()?
On Wed, Apr 20, 2011 at 10:34 AM, Simon King wrote:
> Hi!
>
> Working at #9138 and #11068, I'd like to put as many rings as possible
> into both the new coercion model and the category framewor
Hi!
Working at #9138 and #11068, I'd like to put as many rings as possible
into both the new coercion model and the category framework.
One question arose for quotient rings.
Let Q be a quotient ring with ambient ring R, and let x be an element
of x. In order to "lift" x, i.e., return a represen
On 4/20/11 3:50 AM, Dr. David Kirkby wrote:
This is interesting.
http://code.google.com/p/symja/
Apparently it can parse a large percentage of the Mathematica language
and has nearly 295 functions. I note it has "D[]" and "Integrate[]" as
two of them.
You can try it online at
http://mobmath.a
This is interesting.
http://code.google.com/p/symja/
Apparently it can parse a large percentage of the Mathematica language and has
nearly 295 functions. I note it has "D[]" and "Integrate[]" as two of them.
You can try it online at
http://mobmath.appspot.com/
It did not take me too long to
On 04/20/11 05:47 AM, Jordi Gutiérrez Hermoso wrote:
Barring any unfortunate events, I will most likely be attending Sage
Days 30 in Nova Scotia in less than a couple of weeks. Given my
involvement with Octave, I was considering giving a talk about it, and
I wanted to get a feel for how Sage user
On Fri, Apr 15, 2011 at 12:40:20PM +1200, Francois Bissey wrote:
> After a small number of patch (#11156 from Nicolas M. Thiery, and 2 in
> #9958, one of which is from my friend Steve Trogdon) we have a clear view
> of what needs to be fixed. Test done on 4.7.alpha4 + #7377 and #9969
>
> Aside fro
On Apr 19, 9:34 pm, kcrisman wrote:
> On Apr 19, 11:57 am, John Cremona wrote:
>
>
>
>
>
>
>
>
>
> > John, that is an absolutely brilliant feature I had no idea existed.
> > It should be better known -- thanks!
>
> > John
>
> > On Tue, Apr 19, 2011 at 3:47 PM, John H Palmieri
> > wrote:
>
> >
On 04/20/11 04:21 AM, William Stein wrote:
Python was annoyingly seriously broke on Cygwin for about 8 months.
Gary understood exactly what the problem was, but the Cygwin dev's
didn't seem to agree... at least not until several months.At the
time (5 years ago), at least, it was very difficu
On Mon, Apr 18, 2011 at 10:24:17PM -0700, William Stein wrote:
> So the main issue I pointed out above, namely that SageObject has a
> __hash__ defined, is really a non-issue, since that's the standard
> default convention in Python anyways. The real issue to consider is
> whether using the strin
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