as it sounds like my difficulties stem from that
framework.
--Ursula.
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oject is the next trouble-shooting
step?
I would be curious to know whether the command
sage -i polytopes_db_4d
works for anyone who has a personal installation of Sage handy.
--Ursula.
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y",
line 8, in
from sage_bootstrap.download.mirror_list import MirrorList
File
"/projects/sage/sage-7.3/build/bin/../sage_bootstrap/download/mirror_list.py",
line 22, in
from sage_bootstrap.env import SAGE_DISTFILES
File "/projects/sage/sage-7.3/build/bin/../sage
On 8/13/2015 1:19 PM, Volker Braun wrote:
> On Thursday, August 13, 2015 at 10:09:25 PM UTC+2, Ursula Whitcher wrote:
>
> > sage: map(factor, (x^2+9).coefficients())
> > [3^2, 1]
>
> Can you write it as a symbolic expression?
>
>
> Not really, se
On 8/13/2015 11:57 AM, Volker Braun wrote:
> There is the following one-liner but you can't write it as polynomial
> (Sage polynomials always evaluate the coefficients)
>
> sage: R. = ZZ[]
> sage: map(factor, (x^2+9).coefficients())
> [3^2, 1]
Can you write it as a symbolic expression?
UAW
--
Y
there is a
shortcut built into Sage?
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On 6/1/2014 3:49 PM, Tom Boothby wrote:
g = Graph([(i,(i+1)%6,i%2) for i in range(6)])
h = Graph([(i,(i+2)%6,i%2) for i in range(6)])
k = Graph([(i,(i+3)%6,i%2) for i in range(6) if i<3])
[...]
Nice. Thanks!
--Ursula.
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e to color AND dash lines.
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Is it possible to display a directed graph in Sage so that only some of the
edges are dashed? I found the edge_style option, but that seems to apply
to all of the edges simultaneously.
UAW
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To u
t;.
Very true. I suppose what I was asking was, would it be useful to human
beings who are not me to wrap the python-esque syntax in a Sage
function? And if so, is "monomial" the right thing to call the
function, or should A.monomial() naturally refer to some other operation?
-
A.monomial([1,1,1]) does not return the same
result?
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Turns out my work email silently decided that all trac-related email was
spam! My apologies for harassing everyone.
UAW
On Tuesday, July 23, 2013 10:39:43 AM UTC-5, Ursula Whitcher wrote:
>
> About a week and a half ago, I reset my password on trac.sagemath.org .
> Since then, I
About a week and a half ago, I reset my password on trac.sagemath.org .
Since then, I have not been able to log in. I have sent multiple emails to
sage-trac-account@ googlegroups.com, but received no response.
Can anyone help me out? My username is ursula .
(I can still edit the wiki; I
On Saturday, July 13, 2013 1:40:53 PM UTC-7, Ursula Whitcher wrote:
>
> I would like to construct a ring over a p-adic field that includes a
> (p-1)st root of -p. I tried:
>
> R = Qp(5, 10)
> S. = R[]
> piPoly = v^(5-1)+5
> T. = R.ext(piPoly)
>
> But elements of
^2, ..., w^3.
Am I misinterpreting the generator in some way? What is going on?
Thanks--
Ursula.
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Can folks help me troubleshoot the password problem described below?
I installed Sage in my personal directory, and set the permissions so
that the two other members of my research group can also run my copy of
Sage. I ran ./sage -notebook , and created an admin account and a
personal account o
On Friday, June 7, 2013 12:18:49 PM UTC-5, William wrote:
>
>
> By the way, I'm curious what features are missing from
> https://cloud.sagemath.com that you might need for it to work for your
> project? For example, what extra packages would you need,
> documentation, etc.? Too many bugs (if
Short version of my question:
What is supposed to happen when different users simultaneously invoke
./sage -notebook for the same installation of Sage?
Long version:
I have a small research group this summer, consisting of myself and two
undergraduate students. We don't need to engage in fu
Would it be possible to add a link to the Sage wiki to the list of helpful
resources under "Further resources" at
http://www.sagemath.org/help.html
?
UAW
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On 9/28/2012 2:52 AM, Volker Braun wrote:
I agree. Are you volunteering to write an "introduction to patching for
the impatient" tutorial? ;-)
"For the naive", I think. The impatient person's solution is to make
someone else do the work ;)
The patchbot already knows how to figure out patch
On 9/27/2012 6:54 PM, Dima Pasechnik wrote:
Is there a "test" patch for Sage which doesn't do anything
substantive? I have been writing notes about how to patch a
Windows installation of Sage, and it would be nice to have an
example.
there should not be anything specific about patching Sage
On Monday, September 24, 2012 4:51:28 PM UTC-5, Volker Braun wrote:
>
> The VirtualBox guest additions are already installed in the VM that we are
> distributing, but they don't do clipboard integration on the console (only
> in X).
>
> You can log in via ssh from the host machine, then you can u
Is there a way to force VirtualBox to allow cutting and pasting between
Windows and the console in the standard Sage installation?
Here's the process I'm going through.
First, I updated my version of VirtualBox, and updated the version of Sage
it's running to 5.1.
I noticed that in this versio
On 9/17/2012 4:28 PM, Volker Braun wrote:
Incidentally, I've been working on an alternative implementation of
lattice polytopes. The alternative code has support for 2-d plots of
polygons. Here is an example (click on "Run" to execute):
http://sagepad.org/sp/pad/505488a186b72107de3c1080
Prett
I've been graphing some 2D lattice polytopes using a trick I learned from
Andrey Novoseltsev a while ago: plot the polytopes in 3D, then rotate into
the xy plane for a two-dimensional image. I discovered that when I graph a
larger lattice polytope, the intersection of the x and y axes moves awa
) Scrounge a Mac for the math department, and put Sage on it.
Probably easier than (6). Could I make the Mac into a notebook server
for my students and me?
8) Write a big grant for a research machine for my department and
funds to maintain it. (Hard!)
Please advise!
--Ursula.
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On Mar 1, 2:11 pm, Volker Braun wrote:
> I agree with your example, of course. But I interpreted Dmitri's question
> somewhat differently, that he wants to start with some set of lattice points
> and find out if they all lattice points of the convex hull. Though thinking
> about it, your answer
On Feb 24, 10:57 am, Volker Braun wrote:
> On Thursday, February 24, 2011 6:29:11 PM UTC, Dmitri wrote:
>
> > I think my problem is actually doing the comparison. So I have this
> > chosen set of points which I don't know is convex. I compute its
> > convex hull. Now how do I compare these two obj
On 4/27/2010 5:06 PM, Alex Ghitza wrote:
On Tue, 27 Apr 2010 16:15:24 -0700 (PDT), Ursula Whitcher
wrote:
Can Sage compute the projective dual of a plane curve?
Not at the moment. I'll open an enhancement ticket for this as a
requested feature. It looks like an interesting problem.
Can Sage compute the projective dual of a plane curve?
Thanks!
Ursula.
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On Apr 8, 11:16 am, Ursula Whitcher
wrote:
> I'd like to know H^3(G,Z) for two particular finite groups, namely L_2
> (7), also known as the Chevalley group PSL(2,F_7), and M_20, a
> subgroup of the Mathieu group M_24 which is isomorphic to a semidirect
> product of (Z/2Z)^4 wit
tions? If so, how do I express these
groups (or how should I start trying to express them)? If not, does
anyone have a suggestion for a place to look this up, or another
computation tool I should use?
Thanks!
Ursula
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an | gfan _weightvector -m
Q[x,y]
{x-y}
will produce a list of two vectors.
I hope this works out for you.
Best regards,
Anders"
Is there a way to access the weightvector command from the Sage
implementation of gfan?
Thanks!
Ursula
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To p
David Joyner wrote:
> These require HAP to be installed. Was that installed?
The optional package gap_packages-4.4.10_4 is installed for sagenb.org .
That includes HAP, right?
UAW
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William Stein wrote:
> Do you use a funny shell, have funny environment variables
> set, load customizations? ... becomes root on sage.math
> and tries your session as you... and it works fine.
> Maybe you didn't paste the correct log into your email.
> Please try replicating it yourself, so you
> what do you mean by the 'Singular console in Sage'? A cell in the notebook
> starting with "%singular" or the notebook in Singular mode or something from
> the commandline like (singular_console())? Also, the standalone version of
> Singular you tested, is this the version shipped with Sage? I.
> what do you mean by the 'Singular console in Sage'? A cell in the notebook
> starting with "%singular" or the notebook in Singular mode or something from
> the commandline like (singular_console())?
I was using singular_console() called from the command line. I'm
running the version of sage i
;ing in to sage.math.washington.edu. I just posted a more
detailed report which I hope will be more useful.
Sorry--
Ursula.
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(I tried to post about my problem once before, so my apologies if this
comes through twice.)
I'm receiving a segmentation error when I try to run a procedure in
the Singular console in Sage. I've previously tested this procedure
in Singular (run by itself) and it worked as designed, so I think t
I just used a Groebner basis computation in Singular to compute a
large polynomial. When I tried to display the polynomial I got this
error message:
> a2L1Poly;
Singular : signal 11 (v: 3032/2007102509):
Segment fault/Bus error occurred at 3f because of 10202 (r:1193941253)
please inform the aut
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