Hello again,
thanks for the reactions! Good to see that I'm not the only one who is
having headaches with the current system.
On Saturday, 13 July 2013 05:21:58 UTC+2, Rob Beezer wrote:
>Breaking doctests is one thing, breaking user code is another.
>I've written some rather extensi
Hi Dima,
On Sat, Jul 13, 2013 at 1:26 PM, Dima Pasechnik wrote:
> IMHO it's a not as obsolete convention as you seem to imply; isn't e.g. Magma
> using the same convention as GAP?
> Not mentioning a lot of group theory literature...
I don't know anything about Magma, but what group theory litera
TypeError: unsupported operand parent(s) for '-': 'Symmetric group
algebra of order 5 over Rational Field' and 'Symmetric group algebra
of order 5 over Integer Ring'
I am disappoint...
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Hi Nicolas, and hi all,
> - +1 on a parent option:
>
> sage: PermutationGroup(..., action='left')
>
> Note that this is consistent with what we do for finite set maps:
>
> sage: M = FiniteSetMaps([1, 2, 3], action = 'right')
>
> Maybe PermutationGroupElement will need to take a
Hi all,
On Sun, Jul 14, 2013 at 5:54 AM, Travis Scrimshaw wrote:
> Hey everyone who's following #14772,
>I don't want to change the patch, which has the multiplication in a
> GlobalOptions class, since it's just lifts the previous options up (a
> standard dict). Thus any change should depend
Hi,
On Tuesday, 20 August 2013 23:21:43 UTC+2, Andrew Gainer-Dewar wrote:
>
> How about extending the input signature of Graph.is_connected() to
> include an option
>
> empty_graph_is_connected = False
>
> ?
>
The problem with such a global variable is that is_connected() is used not
just
Hi guys,
sorry for a stupid request, but it seems to me that patches on trac
having size larger than 250KB can no longer be viewed easily since the
server change. (I can still download them and view them locally, but
it is far less comfortable; gedit has colorcoding for .patch files,
but none of t
Hi everyone,
Two updates on the topic of the multiplication order for permutations:
1) In trac #15174, I have implemented global-option-independent
multiplication methods for elements of symmetric group algebras. (Such
methods already existed for permutations -- I have now exposed them and
add
Hi Vincent,
trac ticket #14990 has just been updated this week. Not reviewed, though.
Best regards,
Darij (from sage days 54)
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Hi,
trying to install sage-5.11beta3 on a Ubuntu virtualbox inside a
Windows 7 host (64bit).
Here is what goes wrong:
https://dl.dropboxusercontent.com/u/83265276/ppl-1.1pre9.p0.log
The main error seems to be
"virtual memory exhausted: Cannot allocate memory"
I don't know enough about virtual m
Hi Volker,
Good point -- looking at the virtualbox settings, I see I deceived it about
having 6 cores (the machine has 8, but the VM is allowed only 1). It
compiles well now without that parameter.
Thanks for the good question! What RAM, CPU, etc. settings would you
recommend for a virtual mac
day, November 14, 2013 10:31:44 PM UTC-5, Darij Grinberg wrote:
>>
>> Thanks for the good question! What RAM, CPU, etc. settings would you
>> recommend for a virtual machine running sage?
>>
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Hi,
I'm wondering if anyone could make a tutorial about benchmarking Sage
methods. I am personally not much of a speed fanatic, but when I am
refactoring other people's code I'm trying to make sure it doesn't
slow down as the result and this does require me to run timings. I'm
aware of the basics
Hi,
after experiencing at least two cache-corruption-like issues within
the last two days (one was reported here by Travis
https://groups.google.com/forum/#!topic/sage-devel/LapvScfoBuI , and
the other one appears on trac #15473), but also recalling bugs like
#15248, I am interested in doctesting
Hi John,
thank you! I'll check this out.
Best regards,
Darij
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Hi,
whatever this was, it seems to be fixed by the current #10963 branch!
We *really* need to get that thing merged...
Best regards,
Darij
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Hi,
Is the following a case of refused bequest? (If you don't know much
about symmetric functions, it should be enough to know that p and s
are two free modules with coercions between them.)
sage: Sym = SymmetricFunctions(QQ)
sage: p = Sym.p()
sage: s = Sym.s()
sage: sum([s[2,1]])
s[2, 1]
sage: p
Hi,
this is probably not an actual issue, but it seems that "make build"
trips over some .BACKUP files from a merge (with meld):
https://dl.dropboxusercontent.com/u/83265276/merge-woes.txt
Unfortunately I don't fully remember what I have done that caused
these files. I don't think I ever merged
Hi guys,
this site is now 404:
http://www.sagemath.org/doc/developer/conventions.html
Where has it moved?
Best regards,
Darij
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Hi,
maybe going slightly off the tangent, I'm wondering how to reasonably
review merge commits. It seems to me that merge commits, even if they are
manual and involve significant editing, are shown on trac (and in gitk) as
if nothing has been done. How do I spot a merge gone wrong?
Best rega
Hi,
this is a question from a user perspective, and this isn't that much fake
because I'm far from understanding the LaTeX infrastructure of Sage.
Here is an example of how I would try to look at a poset:
{{{
sage: P = Poset({1: [2]})
sage: view(P)
Warning: `tkz-graph.sty` is not part of this
On Fri, Mar 7, 2014 at 6:34 AM, Volker Braun wrote:
> I think the real answer is going to be distro integration so that the
> necessary latex packages are installed with Sage. Its non-trivial to parse
> the TeX output to extract the relevant errors.
I'd prefer this too, but is it workable? (Discl
Yes, but does it currently install any styles? Could it do so?
On Fri, Mar 7, 2014 at 12:04 PM, Volker Braun wrote:
> Sage doesn't provide its own TeX installation, so it always relies on the
> system (pdf)latex and packages.
>
>
> On Friday, March 7, 2014 4:43:53 PM UTC,
FWIW, I also tend to use the PDF version of the reference manual to hunt
for LaTeX errors in the doc (not only those which break the compilation,
but also semantic ones). In my experience, they are much easier to spot in
the PDF than in the HTML (which also displays badly on older browsers -- I
Hi,
I have used method aliasing (such as "frobenius = frobenius_endomorphism")
a lot. What should I be doing instead, and what is the problem? (I have to
admit this thread was TL;DR to me.)
Best regards,
Darij
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Hi Nathan,
On Thu, Nov 13, 2014 at 11:07 PM, Nathann Cohen wrote:
> 1) Build a class with a method named A, aliased by B
> 2) Extend this class and redefine A
>
> B still points toward the old A.
OK, I see. Well, good enough that the classes I am talking about are
not usually extended.
Best r
Hi,
I'm failing to build ("make build") 7.6.beta6 on my university computer:
[giac-1.2.2.103] /home/dgrinber/sage-7.5.1/local/lib/libntl.so: undefined
reference to `vtable for std::__cxx11::basic_stringbuf, std::allocator >@GLIBCXX_3.4.21'
[giac-1.2.2.103] collect2: error: ld returned 1 exit sta
t; compile giac with gcc 5.x.
>
> Isuru Fernando
>
> On Wed, Mar 8, 2017 at 8:37 PM, Darij Grinberg > wrote:
>
>> Hi,
>>
>> I'm failing to build ("make build") 7.6.beta6 on my university computer:
>>
>> [giac-1.2.2.103] /home/d
Hi,
On Thu, Mar 9, 2017 at 2:16 PM, Isuru Fernando wrote:
> Can you also attach the ntl log?
Here it goes: https://dl.dropboxusercontent.com/u/83265276/ntl-10.1.0.log
Best regards,
Darij
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wrote:
> On 10/03/17 09:18, Darij Grinberg wrote:
>> Hi,
>>
>> On Thu, Mar 9, 2017 at 2:16 PM, Isuru Fernando wrote:
>>> Can you also attach the ntl log?
>>
>> Here it goes: https://dl.dropboxusercontent.com/u/83265276/ntl-10.1.0.log
>>
>> Best re
Yes, it works!
Thanks again, Francois and Isuru.
Best regards,
Darij
On Thu, Mar 9, 2017 at 2:28 PM, Darij Grinberg wrote:
> Hi Francois,
>
> Ah! I see now. I started compiling in my office, then it failed
> and I tried fixing it via ssh. But I ran ssh on a different server
Hi,
I don't know which of the following is better in the "three M"'s as I have
close to no experience with them, but I suspect at least the documentation
part is...
- Dima Pasechnik mentioned representation theory of associative algebras,
but even linear algebra over fields is not implemented
Hi,
please don't make a distinction based on the n being less than 15! That
would make a really bad pitfall.
Best regards,
Darij
On Wed, Mar 18, 2015 at 6:28 AM, Viviane Pons wrote:
>
>
> 2015-03-18 12:40 GMT+01:00 Mike Zabrocki :
>
>> That would make sense. My preference is that (at leas
Hi,
trac is broken again... but only for some tickets:
http://trac.sagemath.org/ticket/11529
http://trac.sagemath.org/ticket/16820
http://trac.sagemath.org/ticket/18001
http://trac.sagemath.org/ticket/18000
It's always this kind of bug:
Trac detected an internal error:
OSError: [Errno 2] No su
This stuff is spooky... I've always been treating int and Integer as
interchangeable when coding for Sage. Maybe I've introduced several such
bugs.
Can anyone explain in a noob-friendly way how an implementer should decide
between returning ints and Integers, when it is OK to treat them as
equ
On Sat, Apr 18, 2015 at 7:15 PM, Volker Braun wrote:
> On Friday, April 17, 2015 at 11:54:29 PM UTC-4, Darij Grinberg wrote:
>>
>> Can anyone explain in a noob-friendly way how an implementer should
>> decide between returning ints and Integers
>>
>
> Sage fu
On Sat, Apr 18, 2015 at 7:44 PM, Volker Braun wrote:
> x.cardinality().factor() should always work (unless it is inifinite).
>
Or zero. :) If we mention one pitfall, let's not forget about the other.
def add_two_numbers(x,y):
> return x+y # no need to convert explicitly to ZZ
>
Ah, becau
On Sat, Jun 13, 2015 at 1:26 AM, William Stein wrote:
> This is a bummer. It gives me even more motivation to make
> SageMathCloud Sage-developer friendly.I'm also curious if anybody
> has any -- possibly *radical* -- suggestions about how to address this
> problem using new ideas.
+1 for a
Hi Anne,
On Sat, Jun 13, 2015 at 3:13 AM, Anne Schilling wrote:
> The SageMathCloud was great for those who had trouble installing Sage on
> their own computer. Sometimes we had connection issues to the SMC (the wheel
> was just spinning). Franco gave a nice talk on how to copy the latest versi
egards,
Darij
On Sat, Jun 13, 2015 at 4:33 PM, Franco Saliola wrote:
>
>
> On Saturday, June 13, 2015 at 6:15:44 AM UTC-5, Darij Grinberg wrote:
>>
>> Hi Anne,
>>
>> On Sat, Jun 13, 2015 at 3:13 AM, Anne Schilling
>> wrote:
>> > The SageMathCloud wa
Hi Anne,
ah, this got updated while I wasn't looking :) Thanks for the reminder!
Best regards,
Darij
On Sat, Jun 13, 2015 at 5:58 PM, Anne Schilling wrote:
> Hi Darij,
>
>> Step 3: maybe explain how to tell when the copying is complete? I
>> think it took more than 3min for me (I used "du -
Hi,
thanks to both of you for your help on step 3, but I've got another
problem on step 4 now:
~/sage-dev-images/sage-6.8.beta3$ git trac config --user darij --pass [redacted]
Saved trac username.
Saved trac password.
Trac xmlrpc URL:
http://trac.sagemath.org/xmlrpc (anonymous)
http://tra
On Sat, Jun 13, 2015 at 8:08 PM, Volker Braun wrote:
> The last public key is invalid, there is no space to set off the comment
> from the b64'ed key.
Ah, thank you! I was overzealous in deleting whitespaces that came
from the copypasting.
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Hi,
On Tuesday, 16 June 2015 20:10:05 UTC+2, Nils Bruin wrote:
>
> Tiebreaker needed:
>
> We have a whole bunch of ways in which a matrix can be constructed. Some
> of the possible signatures we support according to the documentation:
>
> A)
>
> matrix(n,m, )
>
> which constructs the n x m matrix
Hi Nils,
On Wed, Jun 17, 2015 at 4:37 PM, Nils Bruin wrote:
> On Wednesday, June 17, 2015 at 5:52:20 AM UTC-7, Darij Grinberg wrote:
> Here is that response then. For the most part, matrix does work nicely and I
> really appreciate the typing it saves.
>
> I think a good interface
On Fri, Jun 19, 2015 at 5:45 PM, Nils Bruin wrote:
> On Wednesday, June 17, 2015 at 7:48:15 AM UTC-7, Darij Grinberg wrote:
>>
>> Unfortunately, currently the ducktyping is not just in the matrix
>> constructor; it is split across the three stations I mentioned (matrix
&
Hi,
just wanted to mention that Travis has started a ticket on this a while ago:
http://trac.sagemath.org/ticket/18066
IMHO we really need to do some proper OOP here, with contracts and
abstract methods, if we want people to keep adding combinatorial Hopf
algebras and the likes to Sage without hav
>From the end of install.log:
build/temp.cygwin-3.0.7-x86_64-3.7/build/cythonized/sage/matrix/matrix_modn_sparse.o:
In function `FFPACK::rns_double::reduce(unsigned long, double*, unsigned
long, bool) const':
[sagelib-9.0]
/home/skraeling/sage/local/include/fflas-ffpack/field/rns-double.inl:53
st of the
build goes smoothly... --Darij
On Fri, Jan 3, 2020 at 5:13 PM Darij Grinberg wrote:
>
> From the end of install.log:
>
> build/temp.cygwin-3.0.7-x86_64-3.7/build/cythonized/sage/matrix/matrix_modn_sparse.o:
> In function `FFPACK::rns_double::reduce(unsigned long, doubl
On Mon, Jan 6, 2020 at 3:06 PM E. Madison Bray wrote:
> Yep. You can also get around it without modifying *any* files by
> building Sage with:
>
> FFLAS_FFPACK_CONFIGURE=--disable-openmp
Thanks; this removes the need to mess with the repository.
> I do think someone should look into this more.
Trying to build sage 9.1.rc0 on a freshly updated cygwin, I'm getting this:
[ecm-7.0.4.p1] checking whether we can link against GMP... yes
[ecm-7.0.4.p1] checking if gmp.h version and libgmp version are the same...
(6.1.2/6.2.0) no
[ecm-7.0.4.p1] configure: error: 'gmp.h' and 'libgmp' have differ
On Mon, Apr 13, 2020 at 2:31 PM Dima Pasechnik wrote:
>
> On Mon, Apr 13, 2020 at 7:40 PM Darij Grinberg
> wrote:
> >
> > Trying to build sage 9.1.rc0 on a freshly updated cygwin, I'm getting this:
>
> after a Cygwin update one has to
>
> make distclean
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