[sage-devel] Re: Sage 5.4 on ARM

[mmarco]

jaebond, did you try the image i linked? did it work for you?

On 9 dic, 10:56, mmarco  wrote:
> I have made a zip archive with both the image and the scripts that i
> use. you can download it from:
>
> http://riemann.unizar.es/algebra/Archive1.zip
>
> It also includes a readme.txt file
>
> On 8 dic, 23:01, jaebond  wrote:
>
>
>
>
>
>
>
> > Thank you for that, that will help a lot.  I would be interested in the 7gb
> > file.  How do you chroot into your images, do you use a script or an app?
> >  I have been using an app, but it doesn't seem to like images that weren't
> > made by the app.
>
> > On Saturday, December 8, 2012 9:22:20 AM UTC-5, mmarco wrote:
>
> > > The problem was that the ubuntu image that i was using was armel
> > > architecture, but the sage distribution made by Julien was compiled in
> > > an armhf environment (a slightly different architecture). So there
> > > were not compatible.
>
> > > My solution was to get an armhf rootfs from the ubuntu core site
> > > (http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/release/), and
> > > create a disk image with it to use.
>
> > > The procedure to do so would be the following (on a linux box, maybe
> > > you would need root privileges to mount the image):
>
> > > 1) create an empty file to build the image in. If you just wwant it to
> > > use sage, 3GB should be fine. If you want to install a complete ubuntu
> > > system, you will need more (i used 7GB):
> > > dd -if=/dev/zero of=ubuntu.img -bs=1G count=3
>
> > > 2) format the file
> > > mkfs.ext2 ubuntu.img
>
> > > 3)create a directory and mount the image there
> > > mkdir mount
> > > mount -o loop ubuntu.img mount
>
> > > 4) put the ubuntu core tarball in the directory and unpack it
> > > cd mount
> > > wget
> > >http://cdimage.ubuntu.com/ubuntu-core/releases/12.04/release/ubuntu-c...
> > > tar xzf ubuntu-core-12.04.1-core-armhf.tar.gz
>
> > > 5) Unpack the sage install inside the directory
> > > 6) Unmount the directory
> > > cd ..
> > > umount mount
>
> > > And that's it, the file ubuntu.img is ready to be used as a chroot
> > > environment with a very minimal ubuntu system (not even graphical
> > > interface, just the very basic system tools), where sage should work
> > > just fine.
>
> > > I do have a 7gb image with a lightweight desktop, vnc server, and some
> > > applications installed (although for example qt apps don't render
> > > well, and firefox and chromium don't work either, so i have replaced
> > > them by some alternatives).
>
> > > I can try to upload it somewhere, if people is interested.
>
> > > On 7 dic, 23:46, jaebond  wrote:
> > > > mmarco,
>
> > > > I had been working on this exact same issue a few months ago.  Would you
> > > > mind explaining what you did to fix your issue?
>
> > > > On Friday, December 7, 2012 7:55:55 AM UTC-5, mmarco wrote:
>
> > > > > Nevermind, i found the problem: i had to use an armhf ubuntu.
>
> > > > > On 7 dic, 13:15, mmarco  wrote:
> > > > > > I have tried your package in a chroot environment (actually in two,
> > > a
> > > > > > full ubuntu and a lubuntu), and it doesn't start in neither of them.
>
> > > > > > Stranegly, the problem seems to be different: in the lubuntu case,
> > > it
> > > > > > just shows the message with the version and quits. In the full
> > > ubuntu,
> > > > > > it complains with the message "can't import module sage", but for
> > > > > > example, sage -python works fine

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[sage-devel] Talk about the implementation of braid groups.

[mmarco]

I am giving a talk about the implementation of braid groups in sage
next week. It is aimed mostly at braid specialists that don't
necessarily know much about sage, so i have included a brief
introduction to it.

You can see the worksheet i have prepared in
https://abel.mat.ucm.es:8080
The code for braid groups is not available in the current version, so
the server that runs it has a development version with lots of
patches. Please feel free to check it out (it will be available for
some days only, as its only purpose is to serve as a demo for this
talk, and i want to limit the time where i am giving access to run
code on my server to arbitrary persons).

I have also tried to fake a slideshow mode by putting links inside the
worksheet that serve as navigation tools.

Please take a look at it, and let me know any suggestions you might
have.

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[sage-devel] Re: Talk about the implementation of braid groups.

[mmarco]

I forgot to say that the worksheet is published in:

https://abel.mat.ucm.es:8080/home/pub/0/

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Dima Pasechnik]

Hi Anne,

On 14 December 2012 00:01, Anne Schilling  wrote:
> On 12/13/12 2:37 AM, Dima Pasechnik wrote:
>> ["Followup-To:" header set to gmane.comp.mathematics.sage.devel.]
>> On 2012-12-12, Anne Schilling  wrote:
>>> Hi!
>>>
>>> Both Travis and I are having trouble viewing the documentation after
>>>
>>> sage -docbuild reference html
>>>
>>> It yields a lot of [MathError] when viewing the html sources.
>>> The problem started occurring some time between 5.4.beta1 to 5.5.rc0,
>>> most likely due to the switch to mathjax from jsmath.
>>> Does anyone else have this problem? What do we need to do to fix this?
>> Hi Anne,
>>
>> I reviewed that ticket, and I didn't see anything like this.
>>
>> Could you please specify the particular URL in documentation where this
>> can be seen?
>> As well as your browser/OS...
>
> This happens for me for all documentation (whereever there is a formula
> like `f(x)=y`). I am using Firefox, MacOS 10.6.8.

Could you please give one concrete URL, relative to SAGE_ROOT?
I just opened Firefox, start browsing documentation, cannot see any problems...


> Travis is using Windows, so he would need to be more specific (as I
> do not know).
>
>> It could be TeX errors in the docs, actually. We fixed a few on that 
>> ticket(s).
>
> This happens for all TeX code though. Do I need to install something?
You need to be online. Mathjax is uploading fonts on the fly.

Best,
Dima


>
> Thanks,
>
> Anne

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[sage-devel] why is email in sagenb?

[Martin Albrecht]

Hi,

why is the email() function implemented in sagenb instead of sage. It would 
seem it should be part of Sage but it's in 

   sagenb.sagenb.notebook.sage_email

btw. I am asking for 

   http://trac.sagemath.org/sage_trac/ticket/13829

Cheers,
Martin


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Re: [sage-devel] why is email in sagenb?

[William Stein]

On Thu, Dec 13, 2012 at 11:26 AM, Martin Albrecht
 wrote:
> Hi,
>
> why is the email() function implemented in sagenb instead of sage. It would
> seem it should be part of Sage but it's in
>
>sagenb.sagenb.notebook.sage_email
>
> btw. I am asking for
>
>http://trac.sagemath.org/sage_trac/ticket/13829

Email is in sagenb since I implemented "email" when we were
implementing password reset for the "new" notebook (in May 2007).  At
that time, the notebook was part of the Sage library.

-- William

>
> Cheers,
> Martin
>
>
> --
> name: Martin Albrecht
> _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
> _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF
> _www: http://martinralbrecht.wordpress.com/
> _jab: martinralbre...@jabber.ccc.de
>
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>



-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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Re: Re: [sage-devel] why is email in sagenb?

[Martin Albrecht]

Okay, looks like I can move it then (?)

On Thursday 13 Dec 2012, William Stein wrote:
> On Thu, Dec 13, 2012 at 11:26 AM, Martin Albrecht
> 
>  wrote:
> > Hi,
> > 
> > why is the email() function implemented in sagenb instead of sage. It
> > would seem it should be part of Sage but it's in
> > 
> >sagenb.sagenb.notebook.sage_email
> > 
> > btw. I am asking for
> > 
> >http://trac.sagemath.org/sage_trac/ticket/13829
> 
> Email is in sagenb since I implemented "email" when we were
> implementing password reset for the "new" notebook (in May 2007).  At
> that time, the notebook was part of the Sage library.
> 
> -- William
> 
> > Cheers,
> > Martin
> > 
> > 
> > --
> > name: Martin Albrecht
> > _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
> > _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF
> > _www: http://martinralbrecht.wordpress.com/
> > _jab: martinralbre...@jabber.ccc.de
> > 
> > --
> > You received this message because you are subscribed to the Google Groups
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> > to sage-devel+unsubscr...@googlegroups.com. Visit this group at
> > http://groups.google.com/group/sage-devel?hl=en.

Cheers,
Martin

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Re: Re: [sage-devel] why is email in sagenb?

[William Stein]

Yes, unless it's needed by the notebook for some reason, in which case
we have to have two copies, since the notebook is supposed to not
depend on sage...

On Thu, Dec 13, 2012 at 11:41 AM, Martin Albrecht
 wrote:
> Okay, looks like I can move it then (?)
>
> On Thursday 13 Dec 2012, William Stein wrote:
>> On Thu, Dec 13, 2012 at 11:26 AM, Martin Albrecht
>>
>>  wrote:
>> > Hi,
>> >
>> > why is the email() function implemented in sagenb instead of sage. It
>> > would seem it should be part of Sage but it's in
>> >
>> >sagenb.sagenb.notebook.sage_email
>> >
>> > btw. I am asking for
>> >
>> >http://trac.sagemath.org/sage_trac/ticket/13829
>>
>> Email is in sagenb since I implemented "email" when we were
>> implementing password reset for the "new" notebook (in May 2007).  At
>> that time, the notebook was part of the Sage library.
>>
>> -- William
>>
>> > Cheers,
>> > Martin
>> >
>> >
>> > --
>> > name: Martin Albrecht
>> > _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
>> > _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF
>> > _www: http://martinralbrecht.wordpress.com/
>> > _jab: martinralbre...@jabber.ccc.de
>> >
>> > --
>> > You received this message because you are subscribed to the Google Groups
>> > "sage-devel" group. To post to this group, send email to
>> > sage-devel@googlegroups.com. To unsubscribe from this group, send email
>> > to sage-devel+unsubscr...@googlegroups.com. Visit this group at
>> > http://groups.google.com/group/sage-devel?hl=en.
>
> Cheers,
> Martin
>
> --
> name: Martin Albrecht
> _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
> _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF
> _www: http://martinralbrecht.wordpress.com/
> _jab: martinralbre...@jabber.ccc.de
>
> --
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>



-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Dima Pasechnik]

On 14 December 2012 00:33, Anne Schilling  wrote:
> On 12/13/12 8:17 AM, Dima Pasechnik wrote:
>> Hi Anne,
>>
>> On 14 December 2012 00:01, Anne Schilling  wrote:
>>> On 12/13/12 2:37 AM, Dima Pasechnik wrote:
 ["Followup-To:" header set to gmane.comp.mathematics.sage.devel.]
 On 2012-12-12, Anne Schilling  wrote:
> Hi!
>
> Both Travis and I are having trouble viewing the documentation after
>
> sage -docbuild reference html
>
> It yields a lot of [MathError] when viewing the html sources.
> The problem started occurring some time between 5.4.beta1 to 5.5.rc0,
> most likely due to the switch to mathjax from jsmath.
> Does anyone else have this problem? What do we need to do to fix this?
 Hi Anne,

 I reviewed that ticket, and I didn't see anything like this.

 Could you please specify the particular URL in documentation where this
 can be seen?
 As well as your browser/OS...
>>>
>>> This happens for me for all documentation (whereever there is a formula
>>> like `f(x)=y`). I am using Firefox, MacOS 10.6.8.
>>
>> Could you please give one concrete URL, relative to SAGE_ROOT?
>> I just opened Firefox, start browsing documentation, cannot see any 
>> problems...
>
> When I review a patch and want to check its documentation I do
>
> sage -b
> sage -docbuild reference html
> .
> Build finished.  The built documents can be found in 
> /Applications/sage-5.5.rc0/devel/sage/doc/output/html/en/reference
>
> Then if I check on my local computer in Firefox under for example
>
> file:///Applications/sage-5.5.rc0/devel/sage/doc/output/html/en/reference/sage/combinat/posets/posets.html
>
> the fourth line is
>
> Constructs a (finite) [Math Processing Error]-element poset from a set of 
> elements and a directed acyclic graph or poset.

OK,  I can confirm this. It is Firefox-specific, as on OSX 10.6.8 I
only see this on Firefox (5.0.1), but not on Safari and Chrome.

Here are errors (from Firefox error console):

Error: no element found
Source File: chrome://web2pdfextension/content/feat_support_new.xul
Line: 1, Column: 20
Source Code:


Error: c.FONTDATA.FONTS.MathJax_Main[8212][5] is undefined
Source File: 
file:///usr/local/src/sage/sage-5.5.rc0/devel/sage/doc/output/html/en/reference/_static/jax/output/HTML-CSS/imageFonts.js
Line: 15

no idea why this fails on Firefox, but works on the remaining
browsers. Perhaps mathjax  (or/and Sage?) treats Firefox in a special
way.


>
> But this happens in *all* files. This is not specific to a particular
> doc.
>
>>> This happens for all TeX code though. Do I need to install something?
>> You need to be online. Mathjax is uploading fonts on the fly.
>
> I am online.
>
> Best,
>
> Anne

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Volker Braun]

Works for me on Firefox 17.0.1 on Linux x86_64. Can somebody try and see if 
its fixed in more recent recent release?



On Thursday, December 13, 2012 4:52:09 PM UTC, Dima Pasechnik wrote:
>
> OK,  I can confirm this. It is Firefox-specific, as on OSX 10.6.8 I 
> only see this on Firefox (5.0.1), but not on Safari and Chrome. 
>
>

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[John H Palmieri]

On Thursday, December 13, 2012 9:03:51 AM UTC-8, Volker Braun wrote:
>
> Works for me on Firefox 17.0.1 on Linux x86_64. Can somebody try and see 
> if its fixed in more recent recent release?


In more detail: go to  and follow the 
link for "Current Version: MathJax-2.1". Unzip the file to get a directory 
called something like "~/Downloads/mathjax-MathJax-24a378e". Now, go to 
SAGE_ROOT/devel/sagenb/sagenb/data and do

$ mv mathjax mathjax-old
$ mv ~/Downloads/mathjax-MathJax-24a378e mathjax

and try looking at the documentation.

-- 
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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[John H Palmieri]

On Thursday, December 13, 2012 9:09:15 AM UTC-8, John H Palmieri wrote:
>
>
>
> On Thursday, December 13, 2012 9:03:51 AM UTC-8, Volker Braun wrote:
>>
>> Works for me on Firefox 17.0.1 on Linux x86_64. Can somebody try and see 
>> if its fixed in more recent recent release?
>
>
> In more detail: go to  and follow the 
> link for "Current Version: MathJax-2.1". 
>
>
Or perhaps Volker meant a more recent release of Firefox. What is the most 
recent release available for OS X 10.6.8?

-- 
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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Volker Braun]

On Thursday, December 13, 2012 5:13:38 PM UTC, John H Palmieri wrote:

> Or perhaps Volker meant a more recent release of Firefox. What is the most 
> recent release available for OS X 10.6.8?


Thats what I meant - most recent version is 17.0.1 on all platforms. 

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Dima Pasechnik]

I should mention that this kind of error was reported on
http://trac.sagemath.org/sage_trac/ticket/13143
but nobody was able to say exactly where the problem lies.
Now we know, it's Firefox-specific.

I can also add that on OSX 10.5 with Firefox version 3.6.28 the situation is
the same.

Anyhow, the workaround ---use another browser--- is there...


Best,
Dima

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[sage-devel] core dump at end of test in 5.5.rc0

[John Cremona]

When testing 5.5.rc0, newly built on a 64-bit ubuntu 12.04 machine, I
get a failure in testing
sage/schemes/elliptic_curves/ell_number_field.py  not in any of the
tests but at the end when it is quitting:

487 passed and 0 failed.
Test passed.
Segmentation fault (core dumped)
 [42.0 s]


Is this a known issue?

John

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[John H Palmieri]

On Thursday, December 13, 2012 9:17:24 AM UTC-8, Volker Braun wrote:
>
> On Thursday, December 13, 2012 5:13:38 PM UTC, John H Palmieri wrote:
>
>> Or perhaps Volker meant a more recent release of Firefox. What is the 
>> most recent release available for OS X 10.6.8?
>
>
> Thats what I meant - most recent version is 17.0.1 on all platforms. 
>

I wonder if upgrading MathJax would help anyway.

-- 
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[sage-devel] Re: core dump at end of test in 5.5.rc0

[Jean-Pierre Flori]

On Thursday, December 13, 2012 6:36:29 PM UTC+1, John Cremona wrote:
>
> When testing 5.5.rc0, newly built on a 64-bit ubuntu 12.04 machine, I 
> get a failure in testing 
> sage/schemes/elliptic_curves/ell_number_field.py  not in any of the 
> tests but at the end when it is quitting: 
>
> 487 passed and 0 failed. 
> Test passed. 
> Segmentation fault (core dumped) 
>  [42.0 s] 
>
That's expected.
rc1 should have the required fixes. 

>
>
> Is this a known issue? 
>
> John 
>

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Travis Scrimshaw]

On Thursday, December 13, 2012 9:32:49 AM UTC-8, Dima Pasechnik wrote:
>
> I should mention that this kind of error was reported on 
> http://trac.sagemath.org/sage_trac/ticket/13143 
> but nobody was able to say exactly where the problem lies. 
> Now we know, it's Firefox-specific. 
>
> I can also add that on OSX 10.5 with Firefox version 3.6.28 the situation 
> is 
> the same. 
>
> Anyhow, the workaround ---use another browser--- is there... 
>
>  
I switched to Chromium (18.0.1025.168) and then it worked for me, so I can 
reconfirm it is a Firefox-specific issue. I'm running Firefox 15.0.1 on an 
Ubuntu 10.04 VM through VirtualBox.

Thanks,
Travis

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Re: [sage-devel] Re: core dump at end of test in 5.5.rc0

[John Cremona]

On 13 December 2012 18:24, Jean-Pierre Flori  wrote:
>
>
> On Thursday, December 13, 2012 6:36:29 PM UTC+1, John Cremona wrote:
>>
>> When testing 5.5.rc0, newly built on a 64-bit ubuntu 12.04 machine, I
>> get a failure in testing
>> sage/schemes/elliptic_curves/ell_number_field.py  not in any of the
>> tests but at the end when it is quitting:
>>
>> 487 passed and 0 failed.
>> Test passed.
>> Segmentation fault (core dumped)
>>  [42.0 s]
>
> That's expected.
> rc1 should have the required fixes.
>>
>

Thanks!

John
>
>>
>> Is this a known issue?
>>
>> John
>
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[sage-devel] Re: why is email in sagenb?

[Keshav Kini]

William Stein  writes:

> Yes, unless it's needed by the notebook for some reason, in which case
> we have to have two copies, since the notebook is supposed to not
> depend on sage...

Note: Robin Martinjak recently submitted a pull request to sagenb
implementing email notifications for sagenb errors, which modifies
sagenb.notebook.sage_email : https://github.com/sagemath/sagenb/pull/120

-Keshav

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[sage-devel] Re: [sage-combinat-devel] Re: problems with documentation build

[Andrew Mathas]

I am using macosx 10.7.5 and firefox 17.0.1 and the page displays properly 
for me. So the problem is also operating system dependent.

Andrew

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[sage-devel] Re: why is email in sagenb?

[Maarten Derickx]

I've heard quite often now for several things that if something is needed 
in both sage and sagenb then we will need two copies. If there are really 
multiple cases, then maybe it is time to make a small python library called 
something like "sage-utilities" that contains all the functionality that is 
needed by both sage and sagenb. 

Le jeudi 13 décembre 2012 22:05:06 UTC+1, Keshav Kini a écrit :
>
> William Stein > writes: 
>
> > Yes, unless it's needed by the notebook for some reason, in which case 
> > we have to have two copies, since the notebook is supposed to not 
> > depend on sage... 
>
> Note: Robin Martinjak recently submitted a pull request to sagenb 
> implementing email notifications for sagenb errors, which modifies 
> sagenb.notebook.sage_email : https://github.com/sagemath/sagenb/pull/120 
>
> -Keshav 
>
>

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