I think that
Bimodules(R,S)
should check that R and S are rings.
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Hi all,
I am reviewing some of the remaining fines for categories. Will post
remarks about different files in different threads.
Concerning algebra_ideals.py and algebra_modules.py
are the base algebras assumed to be commutative? If so, commutativity
should be checked before returning the
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9 package a fortran compiler able to build Sage?
The reason I ask is that if there is no need for a Fortran compiler, it
is quite possible the standard C/C++ compiler shipped with Solaris
Hi folks,
Dan Drake and I have narrowed down a case where parallel doctesting
would be broken with Sage 4.1.2.alpha4. With a freshly compiled Sage
4.1.2.alpha4, or take the sage.math binary for Sage 4.1.2.alpha4,
follow these steps and watch the carnage:
1. Delete the directory HOME/.sage, yes
On Tue, Sep 29, 2009 at 11:16 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9 package a fortran compiler able to build Sage?
Both answers are right -- it depends on the system.
The
Hi folks,
The site www.webmonkey.com has an interesting article [1] about design
patterns to consider when designing websites to cater to a range of
users, including people with colour blindness. Many of the ideas
mentioned there, and some links listed, might be useful to the
re-design of the
Another preprint today: The Cython tutorial. It's written by myself,
Robert Bradshaw and Stefan Behnel and should be the best starting point
available for people who want to learn to use Cython.
http://sage.math.washington.edu/home/dagss/cython-tutorial-preprint.pdf
As time goes we'll make
Hi William,
This is not a bug, but a feature that has bugged me ever since it has
been introduced:
When I click on a worksheet from the worksheet list, the worksheet is
opened in a new tab in FF. If I then close the worksheet again, I get
directed back to the worksheet list in that tab,
Hi,
On Wed, Sep 30, 2009 at 6:00 PM, Dag Sverre Seljebotn
da...@student.matnat.uio.no wrote:
Another preprint today: The Cython tutorial. It's written by myself, Robert
Bradshaw and Stefan Behnel and should be the best starting point available
for people who want to learn to use Cython.
William Stein wrote:
On Tue, Sep 29, 2009 at 11:16 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9 package a fortran compiler able to build Sage?
Both answers are right -- it depends on
On Wed, Sep 30, 2009 at 1:15 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
William Stein wrote:
On Tue, Sep 29, 2009 at 11:16 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9
On Wed, Sep 30, 2009 at 1:05 AM, Stan Schymanski schym...@gmail.com wrote:
Hi William,
This is not a bug, but a feature that has bugged me ever since it has
been introduced:
When I click on a worksheet from the worksheet list, the worksheet is
opened in a new tab in FF. If I then close the
I just noticed that the following seems okay:
sage: f(t)=matrix([t,t^3])
sage: type(f(t))
type 'sage.symbolic.expression.Expression'
sage: type(f(t).pyobject())
type 'sage.matrix.matrix_symbolic_dense.Matrix_symbolic_dense'
However, not much seems to work correctly:
sage: var('a')
a
sage: f(a)
-- Forwarded message --
From: Steffen Müller jansteffenmuel...@gmail.com
Date: Wed, Sep 30, 2009 at 00:20
Subject: Re: genus2reduction bug ?
correction: the 11 in [I_0-I_11-1] should be a 2. Also Liu wrote to me
that he ran this original program (outside sage) and the same
I think Jason is in Iowa, not Idaho. Often confused by coastal folks,
but very different.
I was marveling at the broad distribution as well yesterday, its great
to see. While developers are still mostly in Europe and the US,
things are improving. I think we could probably benefit from more
From the report a problem bug list:
in Sage 4.1.1
the evaluation of :
f = e^(sqrt(x));
f.integral(x,1,2);
give the error :
Traceback (click to the left for traceback)
...
Is yx positive or negative?
however the evalutation of :
f = 2^((sqrt(x))/ln(2));
f.integral(x,0,2);
work correctly
This works fine in the latest alpha release, at any rate.
- kcrisman
On Sep 30, 7:41 am, Harald Schilly harald.schi...@gmail.com wrote:
From the report a problem bug list:
in Sage 4.1.1
the evaluation of :
f = e^(sqrt(x));
f.integral(x,1,2);
give the error :
Traceback (click to the
This was already considered when graph color defaults were discussed,
and I've been impressed by how Sage developers seem quite cognizant of
the issue.
On a related note, does anyone know what happens when you try to use a
Sage notebook with some standard software for visually-impaired users
(I
On Wed, Sep 30, 2009 at 8:16 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9 package a fortran compiler able to build Sage?
The reason I ask is that if there is no need for a Fortran
2009/9/30 kcrisman kcris...@gmail.com:
This was already considered when graph color defaults were discussed,
and I've been impressed by how Sage developers seem quite cognizant of
the issue.
Perhaps because of red-green colour blind developers like me! In the
article linked to above there's
On Sep 29, 2:30 pm, Robert Bradshaw rober...@math.washington.edu
wrote:
On Sep 29, 2009, at 9:16 AM, kcrisman wrote:
Dear sage-devel,
The recently merged Pynac 0.1.9 now automatically evaluates
inexact (whatever that means) input to most functions, like trig,
gamma, etc.
Should it
On Wed, Sep 30, 2009 at 12:32 AM, William Stein wrote:
On Tue, Sep 29, 2009 at 12:30 PM, Bill Page wrote:
I'd like to propose a new item in the
File ...
drop-down box. One thing that has always bugged me is having to
Rename a worksheet before clicking Save. I have also seen it stump a
I find I cannot make more than one of a certain kind of assume
statement:
sage: assume(a,'real')
sage: assume(b,'real')
If I do, I get an error message:
AttributeError: 'GenericDeclaration' object has no attribute
'variables'
One such assumption is accepted, but not two. But more typical
A simplified successor to
http://wiki.sagemath.org/SageUsability
is up at
http://wiki.sagemath.org/SageTasks
My apologies for omissions, other mistakes, poor classifications, and
other errors of judgment. Feel free to make changes.
I'm too tired right now to add the new items in
On Sep 30, 11:07 am, lutusp lut...@gmail.com wrote:
I find I cannot make more than one of a certain kind of assume
statement:
sage: assume(a,'real')
sage: assume(b,'real')
If I do, I get an error message:
AttributeError: 'GenericDeclaration' object has no attribute
'variables'
It's
Many of my students have run into the following problem: they have
deleted the code cells that separated two text blocks and it's
impossible to put a code block between the two text blocks.
The only solution I've found is: create more text and code blocks below,
then copy and paste. Can I ask for
William Stein wrote:
On Tue, Sep 29, 2009 at 5:11 PM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Sep 29, 2009, at 3:36 PM, Dr. David Kirkby wrote:
As such, I've set all flags, including those for Fortran, even when
not
needed. The extra few bytes of code does no significant
Marshall Hampton wrote:
I think Jason is in Iowa, not Idaho. Often confused by coastal folks,
but very different.
Yep, that's right. I hear that in the winter, we in Iowa feel colder
than the folks in Idaho. (though Marshall, you are probably colder yet!)
I was marveling at the broad
Pablo Angulo wrote:
Many of my students have run into the following problem: they have
deleted the code cells that separated two text blocks and it's
impossible to put a code block between the two text blocks.
The only solution I've found is: create more text and code blocks below,
then copy
francesco biscani wrote:
On Wed, Sep 30, 2009 at 8:16 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Does there need to be a Fortran compiler on the system to build Sage, or
is the fortran-20071120.p9 package a fortran compiler able to build Sage?
The reason I ask is that if there is
On Thu, Sep 24, 2009 at 11:07 AM, Robert Bradshaw
rober...@math.washington.edu wrote:
On Sep 22, 2009, at 8:51 AM, Jason Grout wrote:
Tim Joseph Dumol wrote:
Sorry, I mean't we *can't* use it without a bit of modification.
A google search for rietveld mercurial shows lots of work on
Dr. David Kirkby wrote:
Just out of curiosity, what is the reason behind Solaris shipping with
such an ancient compiler? I mean, GCC 3.4.3 was released short of 5
years ago, it is not maintained anymore by the original developers (I
think), it has no Fortran 77 support, poor compliance to
Hi Karl-Dieter,
On Wed, 30 Sep 2009 07:01:03 -0700 (PDT)
kcrisman kcris...@gmail.com wrote:
On Sep 29, 2:30 pm, Robert Bradshaw rober...@math.washington.edu
wrote:
On Sep 29, 2009, at 9:16 AM, kcrisman wrote:
Dear sage-devel,
The recently merged Pynac 0.1.9 now automatically
Thanks for the examples, Burcin - it will definitely be great for the
long haul to have a unified context. I'm not exactly sure what the
difference between _eval_ and friends is, to be honest, and as long as
the use of prec is deprecated and there is a consistent alternative
everywhere, it
Hi Francois,
On Mon, 28 Sep 2009 20:28:46 +0200
Francois Maltey fmal...@nerim.fr wrote:
If I am right, the symbolic manipulations of Sage come from the
(py)ginac librairies.
Yes, we use pynac, which is derived from ginac to replace the numeric
types with python objects.
It is a good idea
On Sep 30, 7:12 am, Bill Page bill.p...@newsynthesis.org wrote:
Also, would you like it so that when you create a new worksheet
it immediately always by default pops up the rename window?
No, I don't think so. It might be a little awkward to have to specify
a new name every time you just
On Wed, 30 Sep 2009 10:52:56 -0700 (PDT)
kcrisman kcris...@gmail.com wrote:
As it turns out, for this particular issue (#5556), it turned out that
gamma(3/4) was auto-evaluating in the actual rational rings code, so
this was not Pynac. I apologize if I didn't make that clearer above.
No
This issue is being tracked athttp://trac.sagemath.org/sage_trac/ticket/7084
Patch is up.
- kcrisman
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On Sep 30, 2:13 pm, Burcin Erocal bur...@erocal.org wrote:
On Wed, 30 Sep 2009 10:52:56 -0700 (PDT)
kcrisman kcris...@gmail.com wrote:
As it turns out, for this particular issue (#5556), it turned out that
gamma(3/4) was auto-evaluating in the actual rational rings code, so
this was
On Sun, 27 Sep 2009 13:47:49 -0700
William Stein wst...@gmail.com wrote:
On Sun, Sep 27, 2009 at 6:38 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Using
* Solaris 10 update 7 on SPARC
* sage-4.1.2.alpha2
* Sun Studio 12.1
* An updated configure script to
On Wed, Sep 30, 2009 at 9:22 AM, Jason Grout
jason-s...@creativetrax.com wrote:
Pablo Angulo wrote:
Many of my students have run into the following problem: they have
deleted the code cells that separated two text blocks and it's
impossible to put a code block between the two text blocks.
On Sep 30, 8:02 pm, Rob Beezer goo...@beezer.cotse.net wrote:
I often open a worksheet, do some little thing (say, a test or a
single plot), and never come back to it ever again. ...
Me too, maybe we need an additional type of notebook? say
scratchpad, which is just temporary without any
Burcin Erocal wrote:
On Sun, 27 Sep 2009 13:47:49 -0700
William Stein wst...@gmail.com wrote:
On Sun, Sep 27, 2009 at 6:38 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
Using
* Solaris 10 update 7 on SPARC
* sage-4.1.2.alpha2
* Sun Studio 12.1
* An updated
On Wed, 23 Sep 2009 23:47:50 -0700
William Stein wst...@gmail.com wrote:
On Wed, Sep 23, 2009 at 10:11 AM, Francois Maltey fmal...@nerim.fr
wrote:
Where is this mysterious method self._gobj.expand(0) ?
That is in the pynac source code. Pynac is a C++ librayr. To look at
it you have
http://sagetrac.org/sage_trac/ticket/6579
documents a problem which will occur if one tries to build Sage using
gcc on 't2', or any other Solaris box I have tried on. One has to
manually comment out lines 258, 259 and 428 of the file
$SAGE_HOME/local/include/pari/paripriv.h
I personally
On Wed, 30 Sep 2009 11:22:20 -0700 (PDT)
kcrisman kcris...@gmail.com wrote:
Is there any possibility of Pynac becoming part of the standard Sage
mercurial repo? In the sense that one would have immediate access to
changes to it via hg_sage, etc. Maybe that's not kosher, since those
C ++
2009/9/30 Dr. David Kirkby david.kir...@onetel.net:
http://sagetrac.org/sage_trac/ticket/6579
documents a problem which will occur if one tries to build Sage using
gcc on 't2', or any other Solaris box I have tried on. One has to
manually comment out lines 258, 259 and 428 of the file
http://wave.google.com
Is anyone thinking/doing anything about integrating Sage with Google
Wave. Wave is a new collaboration environment that emphasizes
real-time collaboration, richly formatted documents and emails. In my
ideal math environment (next generation Sage Notebook?) I would like
it
Hi Sage-Devel,
Jarrod Millman, Prabhu Ramachandran, and I have been kicking around
the idea of having a Sage Days in India as a satellite conference near
when the next ICM (International Congress of Mathematicians) will
happen in India next year (Aug 19-27, 2010 -- see
Hi,
Here is the current state of my symbolic functions changes. I won't be
able to work on this much in the near future. I don't even expect to
have e-mail access in the next few days.
I would really like to hear comments and suggestions on the new design.
Below is a quick summary of some of
Highly interested, subject to evolving sabbatical approval and
associated travel funding request.
Rob
On Sep 30, 2:15 pm, William Stein wst...@gmail.com wrote:
Hi Sage-Devel,
Jarrod Millman, Prabhu Ramachandran, and I have been kicking around
the idea of having a Sage Days in India as a
On Sep 30, 10:49 pm, Bill Page bill.p...@newsynthesis.org wrote:
Is anyone thinking/doing anything about integrating Sage with Google
Wave.
yes, thinking here :)
from all what i have read and seen (i've a developer account) it's not
that hard. i think the best model would be to design a robot
William Stein wrote:
On Wed, Sep 30, 2009 at 12:29 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
http://sagetrac.org/sage_trac/ticket/6579
documents a problem which will occur if one tries to build Sage using
gcc on 't2', or any other Solaris box I have tried on. One has to
manually
On Wed, Sep 30, 2009 at 8:16 AM, Marshall Hampton hampto...@gmail.com wrote:
I was marveling at the broad distribution as well yesterday, its great
to see. While developers are still mostly in Europe and the US,
things are improving. I think we could probably benefit from more
exposure in
hi, i don't want to add this feature to the sagemath website without a
warning. with google translate it would be possible to display a
translate-bar on top of the page if the browser language (you can set
it, probably the one of the operating system) is different from
english. it would help
On Sep 30, 3:17 pm, Harald Schilly harald.schi...@gmail.com wrote:
hi, i don't want to add this feature to the sagemath website without a
warning. with google translate it would be possible to display a
translate-bar on top of the page if the browser language (you can set
it, probably the one
On Wed, Sep 30, 2009 at 6:17 PM, Harald Schilly
harald.schi...@gmail.com wrote:
hi, i don't want to add this feature to the sagemath website without a
warning. with google translate it would be possible to display a
translate-bar on top of the page if the browser language (you can set
it,
Maybe I'm missing something but wouldn't it be best to ask the authors
of Pari what the purpose of these lines are? I also feel like making
a change we don't understand at all (at least I don't) could be bad.
If we cannot for some reason then I like Dave's idea of running tests
of a build with
On Wed, 30 Sep 2009 at 12:09PM -0700, Harald Schilly wrote:
On Sep 30, 8:02 pm, Rob Beezer goo...@beezer.cotse.net wrote:
I often open a worksheet, do some little thing (say, a test or a
single plot), and never come back to it ever again. ...
Me too, maybe we need an additional type of
On Wed, Sep 30, 2009 at 3:40 PM, ma...@mendelu.cz ma...@mendelu.cz wrote:
On 18 zář, 08:33, Robert Bradshaw rober...@math.washington.edu
wrote:
Ok, but it should be possible to share the worksheet directory ?
I *need* to share it (we have 3 machines, on which the users -some
hundredsof
William Stein wrote:
On Wed, Sep 30, 2009 at 2:50 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
William Stein wrote:
On Wed, Sep 30, 2009 at 12:29 PM, Dr. David Kirkby
david.kir...@onetel.net wrote:
http://sagetrac.org/sage_trac/ticket/6579
documents a problem which will occur if
Hi all,
Found this simple bug in a simple Z[x] factoring example.
R.x=PolynomialRing(ZZ)
f = 12*x^10 + x^9 + 432*x^3 + 9011
g = 13*x^11 + 89*x^3 + 1
F = f^2 * g^3
G = F.factor()
should_be_zero = F - G.prod()
should_be_zero == 0
The problem was that F.factor returns
2028 * (12*x^10 + x^9 +
On Sep 30, 5:15 pm, William Stein wst...@gmail.com wrote:
Hi Sage-Devel,
Jarrod Millman, Prabhu Ramachandran, and I have been kicking around
the idea of having a Sage Days in India as a satellite conference near
when the next ICM (International Congress of Mathematicians) will
happen in
Wow, that's quite disturbing. Did you make a trac ticket for this?
-Marshall Hampton
On Sep 30, 7:32 pm, AndyNovo a...@novocin.com wrote:
Hi all,
Found this simple bug in a simple Z[x] factoring example.
R.x=PolynomialRing(ZZ)
f = 12*x^10 + x^9 + 432*x^3 + 9011
g = 13*x^11 + 89*x^3 + 1
+1.
On Thu, Oct 1, 2009 at 6:17 AM, Harald Schilly harald.schi...@gmail.comwrote:
hi, i don't want to add this feature to the sagemath website without a
warning. with google translate it would be possible to display a
translate-bar on top of the page if the browser language (you can set
it,
On Wed, 30 Sep 2009 at 02:15PM -0700, William Stein wrote:
Hi Sage-Devel,
Jarrod Millman, Prabhu Ramachandran, and I have been kicking around
the idea of having a Sage Days in India as a satellite conference near
when the next ICM (International Congress of Mathematicians) will
happen in
On Wed, Sep 30, 2009 at 7:13 PM, Marshall Hampton hampto...@gmail.com wrote:
Wow, that's quite disturbing. Did you make a trac ticket for this?
I've made this:
http://trac.sagemath.org/sage_trac/ticket/7088
and made it a 4.1.2 blocker, since it a serious bug. The problem is
in the
ma...@mendelu.cz a écrit :
On 18 zář, 08:33, Robert Bradshaw rober...@math.washington.edu
wrote:
Ok, but it should be possible to share the worksheet directory ?
I *need* to share it (we have 3 machines, on which the users -some
hundredsof students- will be connected at random).
I don't
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