William,
Patch 11 of GAP 4.4 fixes a dozen of critical level bugs, ie bugs
that potentially lead to wrong results! Eg getting wrong character
tables, wrong results in range intersection...
If a platform, like Itanium, was dropped, it is likely for a jolly good reason.
IMHO distributing a clearly
On Thu, Nov 26, 2009 at 5:27 AM, Surendran Karippadath
wrote:
> Hello,
>
> I am compiling sage ( 4.1.2 and 4.2.1 on 32bit Debian Stable gcc-4.3.2
> and 4.2.6) I find the wiki() function at the sage: prompt raises
> error and no wiki -page appears. The result is the following--
Hi,
I'm sorry th
On Sun, Nov 29, 2009 at 4:43 PM, Christopher Olah
wrote:
>> Jmol comes with Sage, so Jmol is always installed. However, you need
>> Java to run Jmol.
>> Sage doesn't fallback to anything if Jmol doesn't work (I wish Sage
>> did fallback).
>
> That's interesting: I've had problems where it didn't
var('y', domain='real')
assume(y, 'real')
abs(exp(y*I)).simplify()
1
abs(exp(1.1*y*I)).simplify()
e^(1.1*I*y)
The last result is incorrect. It seems simplify() doesn't like
floating point?
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> Jmol comes with Sage, so Jmol is always installed. However, you need
> Java to run Jmol.
> Sage doesn't fallback to anything if Jmol doesn't work (I wish Sage
> did fallback).
That's interesting: I've had problems where it didn't work and I had
to install Jmol myself. Is this a recent change?
On Sun, Nov 29, 2009 at 11:50 AM, Christopher Olah
wrote:
> Installing Jmol may help. It's used to show the 3d stuff in a
> rotatable manner. That said, I think it should be using tachyon if
> Jmol isn't installed.
Jmol comes with Sage, so Jmol is always installed. However, you need
Java to run
On Sun, Nov 29, 2009 at 8:40 AM, tmbdev wrote:
> Sage supports all sorts of "external" tools, like R and Octave.
>
> I would like to be able to use the installed version of Python with
> the Sage notebook interface (in place of its built-in one). The
> reason is that we have a lot of local packag
On Sun, Nov 29, 2009 at 9:38 AM, dimpase wrote:
> Another similar question involves using the local version of GAP
> in place of the supplied one.
> Apart from the fact that Sage is distributed with an old and (a bit)
> broken version of GAP,
> (well, I know that I can install a newer version by d
You can also set the path inside the notebook itself by appending to
sys.path.
Tom
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> So Sage contains the other computer algebra systems, but calls other
> programs for graphic display.
The graphic display is through an applet in your browser; for that to
display, your browser needs to be capable of displaying applets, and
for that you need to install Java. Sage can't do that f
This is the right reason :
> ...with Ubuntu, the right package is
>
> apt-get install icedtea6-plugin
>
It's perfect.
So Sage contains the other computer algebra systems, but calls other
programs for graphic display.
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To u
If you could use the system Python, that would fix that problem too,
wouldn't it?
Tom
On Nov 29, 6:38 pm, dimpase wrote:
> Another similar question involves using the local version of GAP
> in place of the supplied one.
> Apart from the fact that Sage is distributed with an old and (a bit)
> bro
Christopher Olah ha scritto:
> Installing Jmol may help. It's used to show the 3d stuff in a
> rotatable manner. That said, I think it should be using tachyon if
> Jmol isn't installed.
>
As far as I remember, with Ubuntu, the right package is
apt-get install icedtea6-plugin
At least, on my comp
Hello Alex,
regarding this topic, look at these two threads:
http://groups.google.com/group/sage-support/browse_thread/thread/93973810618b2aa3/49fe80a730cf9137
http://groups.google.com/group/sage-support/browse_thread/thread/e3d6d735c7cc1507/401d424df1e6f5e9
Georg
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Hi Roland,
On Sun, 29 Nov 2009 11:46:00 -0800 (PST)
Rolandb wrote:
>
> Unhandled SIGSEGV: A segmentation fault occured in SAGE.
> This probably occured because a *compiled* component
> of SAGE has a bug in it (typically accessing inval
Installing Jmol may help. It's used to show the 3d stuff in a
rotatable manner. That said, I think it should be using tachyon if
Jmol isn't installed.
On Sun, Nov 29, 2009 at 1:39 PM, Francois Maltey wrote:
> Hello,
>
> I try to use the 3d plot but I can't.
>
> The first command is perfect.
>
On 29 lis, 02:47, Marshall Hampton wrote:
> I think that's probably a bug. As far as I know, the ode_solver code
> hasn't been used all that much. When I have personally wanted to
> numerically solve ODEs I have just written my own Runge-Kutta 4th
> order solvers in Cython. If no one else chi
Hi,
Unhandled SIGSEGV: A segmentation fault occured in SAGE.
This probably occured because a *compiled* component
of SAGE has a bug in it (typically accessing invalid memory)
or is not properly wrapped with _sig_on, _sig_off.
You might w
On Nov 28, 3:00 pm, David Joyner wrote:
> On Sat, Nov 28, 2009 at 5:43 PM, Le Fou Volant
> wrote:
>
> > Hello,
>
> > How can I import Python modules into Sage? Into the notebook would be
> > best.
>
> I think you do it in the usual way that you would for ordinary Python.
I don't think it can w
Hello,
I try to use the 3d plot but I can't.
The first command is perfect.
The second opens no new display and I can continue other calculus after.
I use a sage 4.2 version in a emacs windows in gnome box. The
distribution is an ubuntu.
show( line([(1,2), (1,0), (3,1), (2,1)], color='red'))
sh
Another similar question involves using the local version of GAP
in place of the supplied one.
Apart from the fact that Sage is distributed with an old and (a bit)
broken version of GAP,
(well, I know that I can install a newer version by downloading the
corresponding update)
having two copies of G
Sage supports all sorts of "external" tools, like R and Octave.
I would like to be able to use the installed version of Python with
the Sage notebook interface (in place of its built-in one). The
reason is that we have a lot of local packages installed that we can't
reinstall within Sage.
So, wh
Great, thanks
On Sun, Nov 29, 2009 at 6:12 PM, Minh Nguyen wrote:
> Hi Yotam,
>
> On Mon, Nov 30, 2009 at 3:03 AM, Yotam Avital wrote:
> > Hi.
> >
> > I'm considering using sage as the main tool for my Ph.D research that
> will
> > start soon. My research will involve some analysis of proteins
Hi Yotam,
On Mon, Nov 30, 2009 at 3:03 AM, Yotam Avital wrote:
> Hi.
>
> I'm considering using sage as the main tool for my Ph.D research that will
> start soon. My research will involve some analysis of proteins and DNA data
> (such as sequence). Is there a tool in sage for text analysis? mostly
There is the re module, which I think is not usually loaded in sage:
http://docs.python.org/library/re.html
Also, if you are doing sequence analysis you definitely want to
install the optional biopython package if you haven't already.
Cheers,
Marshall Hampton
On Nov 29, 10:03 am, Yotam Avital
Hi.
I'm considering using sage as the main tool for my Ph.D research that will
start soon. My research will involve some analysis of proteins and DNA data
(such as sequence). Is there a tool in sage for text analysis? mostly
regular expressions.
I assume there is a tool built it in python.
Thank
Thanks.
I think I got it.
On Sun, Nov 29, 2009 at 12:48 PM, Harald Schilly
wrote:
> On Nov 29, 10:50 am, Yotam Avital wrote:
> >
> > 1. def f(x): return x^2
>
> That's a pure Python function, it's in some way "universal" but you
> cannot derivate it.
>
> sage: type(f)
>
>
> >
> > 2. f(x) = x^2
On Nov 29, 10:50 am, Yotam Avital wrote:
>
> 1. def f(x): return x^2
That's a pure Python function, it's in some way "universal" but you
cannot derivate it.
sage: type(f)
>
> 2. f(x) = x^2
That's preparsed and actually this:
sage: preparse('f(x) = x^2')
'__tmp__=var("x"); f = symbolic_express
Hi.
What is the difference between the following 3 ways:
1. def f(x): return x^2
2. f(x) = x^2
3. x = var('x')
f(x) = x^2
thanks.
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On Sat, Nov 28, 2009 at 3:55 PM, Stefan Boettner wrote:
> William,
>
> I can factor polynomials with coefficients in QQ fine. Here are the
> examples I mentioned in greater detail:
>
> # define the coefficient field K and R=K[x,y]
> K.=PolynomialRing(QQ,1)
> K=FractionField(K)
> R.=PolynomialRing(
On Sun, Nov 29, 2009 at 7:11 AM, ryan_n wrote:
> Hello all,
>
> I've just started using Sage, and I'm currently trying to use the
> ode_solver class to solve some simple differential equations. I was
> having some problems setting up my own program based on this class
> until I realized that the
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