I was asked to test a hypothesis about skew-symmetric matrices, so I'll
generate some at random.
Could this kind of function be useful to others? If so, would best way for
it be to add "algorithm='skew-symmetric'" to
sage.matrix.constructor.random_matrix()?
--
Jori Mäntysalo
Exterior algebras were included as part of
http://trac.sagemath.org/ticket/15300 (which was merged into Sage 6.4).
sage: E. = ExteriorAlgebra(QQ)
sage: a = x * y + x - 3*y / 2; a
x^y + x - 3/2*y
sage: a.interior_product(x)
y + 1
sage: a.interior_product(y)
-x - 3/2
Best,
Travis
--
You received
2015-04-07 12:13 GMT-04:00 Volker Braun :
> No, I'm saying its nice functionality but attached at the wrong place. If
> you can't use .plot() to generate the graphics the how on earth is a new
> user supposed to discover that functionality? Its just a terrible UI.
>
You're right about that! I gue
On Tuesday, April 7, 2015 at 6:56:56 PM UTC+2, vdelecroix wrote:
>
> Hello,
>
> We currently ship two implementations of floating point complex numbers:
> - ComplexField: home made implementation based on two mpfr for the
> real and imaginary parts
> - MPComplexField: implementation based o
Hello,
Could please the one of you that run the sage4 patchbot upgrade it to 2.3.2
?
It seems to be stuck on ticket #9386. Maybe updating the patchbot could
help ?
sage -i http://chapoton.perso.math.cnrs.fr/patchbot-2.3.2.spkg
cheers,
Frederic
--
You received this message because you are s
... turns out that not only SymPy, but also GiNaC has a problem when
expanding zeta around 1. However, it is more likely for the error to come
from GiNaC -- so I'll do some more investigations, and then report the
issue there as well.
In any case, thanks for help!
Best wishes,
Benjamin
Am Die
Hello,
We currently ship two implementations of floating point complex numbers:
- ComplexField: home made implementation based on two mpfr for the
real and imaginary parts
- MPComplexField: implementation based on the library mpc
Those two implementations serve the same purpose. Note that in th
Hello,
On 07/04/2015, Benjamin Hackl wrote:
> Hello everybody,
>
> today I had a look at http://trac.sagemath.org/ticket/15846 and I think I
> may have tracked down the issue to SymPy (details in the comments of the
> ticket).
> Assuming what I found actually is the problem, I'm not quite sure ho
I think a logo refresh would be great. Companies refresh their logos all
the time without loss of continuity or brand recognition. I agree with the
concern that this kind of thing requires the skills of a professional
designer, but I don't see why such a professional couldn't be involved at
the
No, I'm saying its nice functionality but attached at the wrong place. If
you can't use .plot() to generate the graphics the how on earth is a new
user supposed to discover that functionality? Its just a terrible UI.
On Tuesday, April 7, 2015 at 4:30:58 PM UTC+2, Viviane Pons wrote:
>
>
>
> 201
Hello everybody,
today I had a look at http://trac.sagemath.org/ticket/15846 and I think I
may have tracked down the issue to SymPy (details in the comments of the
ticket).
Assuming what I found actually is the problem, I'm not quite sure how to
proceed from there (i.e. reporting the issue upst
On Saturday, April 4, 2015 at 3:18:53 PM UTC+2, Nicolas M. Thiéry wrote:
>
> Actually you can ref from the thematic tutorial back to the reference
> manual, and there already are many (not enough!!!) such links:
>
Really. Is that ticket obsolete then:
http://trac.sagemath.org/ticket/14091
--
Y
Am 2015-04-04 um 15:18 schrieb Nicolas M. Thiery:
> On Fri, Apr 03, 2015 at 06:24:42AM -0700, Ralf Stephan wrote:
>>I think it would already be better if there wasn't this bug
>>preventing authors from linking between document trees.That's
>>presumably why the three random tutorials I p
Interestingly, I just noticed that on the sagetrac webpage, the logo is
different than the usual one:
http://trac.sagemath.org/
It seems that this is actually the "real" picture behind Sagemath logo.
Could that be?
This would be that the logo is actually some sort of Schlegel diagram of a
hig
Dear Harald,
Thank you very much the detailed answer! This is pretty much what I was
looking for!
Indeed, it seems like a big decision to change the logo "just like that".
It is good to know
about the whole story behind the logo.
Of course, the point that logos develop a certain signature for
On Tue, Apr 7, 2015 at 9:12 AM, kcrisman wrote:
> Sorry for dredging this up from the depths...
>
> So I see that http://trac.sagemath.org/ticket/14418 has a more explicit
> interface. What gets me wondering about the current state in Sage is an
> article in the most recent Notices which contains
2015-04-03 4:05 GMT-04:00 Volker Braun :
> On Friday, April 3, 2015 at 9:56:40 AM UTC+2, Daniel Krenn wrote:
>>
>> Actually, it is a short for
>> view(latex(transducers.GrayCode()))
>
>
> I know. And who cares? The important point is to present a uniform user
> interface for generating graphical
>
>
> I did not know about this function (thanks!) though I had something
> different in mind, i.e.:emphasize *some* elements of a list. What
> Volker would define as:
>
> > table(range(100), highlight=is_prime)
>
>
Right, I see what you mean now. In principle the LaTeX and other outputs
of
Sorry for dredging this up from the depths...
So I see that http://trac.sagemath.org/ticket/14418 has a more explicit
interface. What gets me wondering about the current state in Sage is an
article in the most recent Notices which contains a reference
to https://sites.google.com/site/grassmann
Am 2015-04-02 um 20:01 schrieb Daniel Krenn:
> Am 2015-04-02 um 13:25 schrieb Daniel Krenn:
>> Am 2015-04-02 um 13:18 schrieb Thierry:
>>> Should we offer a kind of test-sage ? Should we propose a kind of
>>> proprecation warning that says "This code is very new and its design is not
>>> foolproof.
Hello,
> Are you referring to the "table" functionality, which works great in
> notebook and maybe also now in the cloud? This sounds like what you're
> saying, which is an often-requested thing that finally is top level
> (previously was html.table, which also still works).
I did not know about
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