Hi!
There seems to be an extension for Polymake that can compute
simplicial homology.
Quoted from http://www.math.tu-berlin.de/polymake/external.html
homology
by Frank Heckenbach, Uni Erlangen-Nürnberg
An efficient program computing homology groups of simplicial
complexes.
Unfortunatel
On Mon, Jan 19, 2009 at 11:18 AM, Paul Zimmermann
wrote:
> Michael, William,
>
> while preparing my talk, I noticed QD was still mentioned on
> http://sagemath.org/links-components.html, but I think it is no
> longer in Sage.
>
> Paul
Quaddouble is still in sage unfortunately. We voted to
On Mon, Jan 19, 2009 at 6:43 PM, Justin C. Walker wrote:
> On Jan 19, 2009, at 06:33 , mabshoff wrote:
>
>>
>> Hello folks,
>>
>> here goes 3.3.alpha0. It was a lot longer than I thought, but the ReST
>> patches seemed to have slowed down things combined with the start of
>> the new year. Either
On Jan 19, 2009, at 06:33 , mabshoff wrote:
>
> Hello folks,
>
> here goes 3.3.alpha0. It was a lot longer than I thought, but the ReST
> patches seemed to have slowed down things combined with the start of
> the new year. Either way, it seems that we are back to brisk
> development speed. The a
Thanks for the hard work on this Michael.
On ubuntu amd64 8.10, the usual: build went fine, the sage -testall had
lots of (lisp related?) timeouts but apparently no other problems.
I'm looking forward to seeing the new documentation!
On Mon, Jan 19, 2009 at 9:33 AM, mabshoff wrote:
>
> Hello
On Jan 19, 2009, at 3:41 PM, slabbe wrote:
> Hi!
>
> I would like to know if the following is a bug or if I have to work
> with it.
>
> It is related to this conversation :
> Finding a duplicated vector in a list of vectors
> http://groups.google.com/group/sage-support/browse_thread/thread/
> 71
Hi!
I would like to know if the following is a bug or if I have to work
with it.
It is related to this conversation :
Finding a duplicated vector in a list of vectors
http://groups.google.com/group/sage-support/browse_thread/thread/714bd13c9b36f683#
Thank you,
Sébastien Labbé
*
sage:
mabshoff wrote:
>
>
> On Jan 19, 10:11 am, Jaap Spies wrote:
>> Jaap Spies wrote:
>>> mabshoff wrote:
Well, I am not sure if I am happier about Heisenbugs than
segfaults :). To be on the save side can you run them in a loop via
the shell and see if you get them to crash again? I.
mabshoff wrote:
> Hello folks,
[...]
>
> Please build test as usual and let us know about doctest failures. I
> am leaving for SD 12 in about 10 hours, so there won't be another
> alpha until probably the first day of SD 12.
>
On Fedora 10, 32 bits only one failure in a fresh build:
sage -t "d
On Jan 19, 10:11 am, Jaap Spies wrote:
> Jaap Spies wrote:
> > mabshoff wrote:
> >> Well, I am not sure if I am happier about Heisenbugs than
> >> segfaults :). To be on the save side can you run them in a loop via
> >> the shell and see if you get them to crash again? I.e. having info
> >> tha
Jaap Spies wrote:
> mabshoff wrote:
>> Well, I am not sure if I am happier about Heisenbugs than
>> segfaults :). To be on the save side can you run them in a loop via
>> the shell and see if you get them to crash again? I.e. having info
>> that they crash 1 or 2 out of 100 runs would be somethin
mabshoff wrote:
>
>
> On Jan 19, 8:16 am, Jaap Spies wrote:
>> mabshoff wrote:
>
>
>
> Hi Jaap,
>
>>> Judging by the time it took you to report this I would guess you did
>>> an upgrade. If so can you
>> Hi Michael,
>>
>> repeating the tests made them pass!
>
> Did you upgrade or not? That
On Jan 19, 8:16 am, Jaap Spies wrote:
> mabshoff wrote:
Hi Jaap,
> > Judging by the time it took you to report this I would guess you did
> > an upgrade. If so can you
>
> Hi Michael,
>
> repeating the tests made them pass!
Did you upgrade or not? That is quite relevant here due to the gmp
Magma also supports chain complexes:
http://magma.maths.usyd.edu.au/magma/htmlhelp/text625.htm
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mabshoff wrote:
>
>
> On Jan 19, 8:05 am, Jaap Spies wrote:
[...]
>>
>> Mostly of the type:
>> sage -t "devel/sage/sage/matrix/misc.pyx"
>> A mysterious error (perphaps a memory error?) occurred, which may have
>> crashed doctest.
>> [1.0 s]
>
> Judging by the time it took you to re
On Jan 19, 5:44 am, David Joyner wrote:
> On Mon, Jan 19, 2009 at 1:40 AM, John H Palmieri
> wrote:
>
> You are not stepping on any toes AFAIK but doesn't the GAP package HAP
> implement something like this?http://www.gap-system.org/Packages/hap.html
This does seem to do homology of chain comp
On Jan 19, 8:05 am, Jaap Spies wrote:
> mabshoff wrote:
> > Hello folks,
>
> On Fedora 9, 32 bits:
Hi Jaap,
> --
> The following tests failed:
>
> sage -t "devel/sage/sage/matrix/misc.pyx"
> sage -t "devel/s
OK, those are now #5026 and #5027.
-Marshall
On Jan 19, 9:59 am, mabshoff wrote:
> On Jan 19, 7:56 am, mhampton wrote:
>
> Hi Marshall,
>
> > I had two numerical noise failures on an intel macbook, 10.5.6:
>
> Only one is numerical noise, the other one is due to xgcd changes
> AFAIK.
>
> > ***
On Jan 19, 12:14 am, Carlo Hamalainen
wrote:
> On Mon, Jan 19, 2009 at 7:40 AM, John H Palmieri
> wrote:
>
> > I have a first draft of a module which implements simplicial
> > complexes, chain complexes, and their homology.
>
> Cool!
>
> Is there anything in CHomP that may be of use to you?
>
mabshoff wrote:
> Hello folks,
>
On Fedora 9, 32 bits:
--
The following tests failed:
sage -t "devel/sage/sage/matrix/misc.pyx"
sage -t "devel/sage/sage/rings/polynomial/term_order.py"
sage -t "deve
On Jan 18, 10:46 pm, William Stein wrote:
> On Sun, Jan 18, 2009 at 10:40 PM, John H Palmieri
>
>
>
> wrote:
>
> > I have a first draft of a module which implements simplicial
> > complexes, chain complexes, and their homology. It isn't perfect: it
> > is limited by Sage's abilities to deal w
It would be very cool to have CHomP in Sage. I think John's focus is
more on pure math, and my understanding of CHomP is that it is aimed
more at dynamical systems and symbolic-numeric applications, but there
is probably some overlap. At any rate, it would really help the
current state of dynami
On Jan 19, 7:56 am, mhampton wrote:
Hi Marshall,
> I had two numerical noise failures on an intel macbook, 10.5.6:
Only one is numerical noise, the other one is due to xgcd changes
AFAIK.
> **
> File ".../devel/sage/sage/ri
I had two numerical noise failures on an intel macbook, 10.5.6:
**
File ".../devel/sage/sage/rings/polynomial/complex_roots.py", line
270:
sage: complex_roots(x^2 + 27*x + 181)
Expected:
[(-14.61803398874990?..., 1), (-12
I can reproduce (1) on sage-3.3.alpha0, which seems like the most
important one. This should be relatively easy to fix - I think the
new text cell type just needs more infrastructure. I agree with (2),
it would be nice if the default link opens a new tab or window. I
cannot reproduce (3) but I
Hello folks,
here goes 3.3.alpha0. It was a lot longer than I thought, but the ReST
patches seemed to have slowed down things combined with the start of
the new year. Either way, it seems that we are back to brisk
development speed. The alpha is *huge* and centers around three major
improvements:
mhampton wrote:
> Thanks for keeping track of those issues. I would add them to the
> tinymce track ticket (4705) but its just been closed as that was
> merged in sage-3.3.alpha0 which is up on sage.math.washington.edu in
> mabshoff's folder but hasn't been announced yet. I could open a new
> ti
On Jan 19, 5:53 am, mhampton wrote:
Hi,
> Thanks for keeping track of those issues. I would add them to the
> tinymce track ticket (4705)
Please do not add anything to a messy ticket like that. The TinyMCE
and related patches have been the worst merge I have ever done while
doing releases fo
Thanks for keeping track of those issues. I would add them to the
tinymce track ticket (4705) but its just been closed as that was
merged in sage-3.3.alpha0 which is up on sage.math.washington.edu in
mabshoff's folder but hasn't been announced yet. I could open a new
ticket, but there have been
On Mon, Jan 19, 2009 at 1:40 AM, John H Palmieri wrote:
>
> I have a first draft of a module which implements simplicial
> complexes, chain complexes, and their homology. It isn't perfect: it
> is limited by Sage's abilities to deal with modules over arbitrary
> commutative rings, or at least by
On Mon, Jan 19, 2009 at 7:40 AM, John H Palmieri wrote:
> I have a first draft of a module which implements simplicial
> complexes, chain complexes, and their homology.
Cool!
Is there anything in CHomP that may be of use to you?
http://chomp.rutgers.edu/software/
It's GPL v2, mostly C++. It h
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