Yes, it's a good idea to have PPL.
You can start by making it an optional package.
Are you saying that PPL cannot work with floating point numbers?
Dima
On Oct 18, 8:13 pm, Volker Braun wrote:
> === Introduction ===
>
> I would like to have the Parma Polyhedra Library (PPL) included
> as a stan
I definitely vote YES.
I often have problems and have to create work-arounds due to Sage poor
performance on (a lot of) *very simple* polyhedra, since both current
options (cddlib and PALP) are used as standalone programs and
therefore add a system call overhead. I actually expect speed ups up
to
On Oct 16, 5:21 am, Burcin Erocal wrote:
>[...]
> if they are filed in different components. The members of the
> bug-wrangler mailing list will be able to see the initial report for
> every ticket, so they might recall a similar problem reported a few
> days ago.
>
> Another advantage is that t
Here's another way to see this:
sage: P. = QQ[]
sage: I = Ideal(x+y+z-3,x^2+y^2+z^2-5,x^3+y^3+z^3-7)
sage: from sage.misc.citation import get_systems
sage: get_systems("I.radical()")
['Singular']
- kcrisman
On Oct 18, 8:04 pm, Martin Albrecht
wrote:
> On Tuesday 19 October 2010, deryk lv wrote:
> I would submit that practicing good software engineering techniques is
> more than a matter of finding the money (and especially time) to read
> a good book on it--we all have different priorities on what we can
> afford to spend "10,000 hours" on. (Note, I'm not saying it wouldn't
> be useful f
I don't know how to do it technically, but one way to do it is to submit a
patch changing the double underscore in
CategoryObject.__temporarily_change_names into a single underscore. Name
mangling is annoying, and I would personally love it if every double
underscore became a single one.
David
On
On Tuesday 19 October 2010, deryk lv wrote:
> Hi,everyone,
> I am just wondering whether radical ideal computation in Sage is making use
> of Singular on backend.
Yes.
The note in the docstring might be a bit cryptic but it is there (type
"I.radical?")
"""
Note: From the Singular manual: A comb
Hi,everyone,
I am just wondering whether radical ideal computation in Sage is making use
of Singular on backend.
Thanks a lot.
Gepo
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For
Hi!
I have a Python class which inherits from ParentWithGens, and I want
to overload the method __temporarily_change_names that is inherited
from CategoryObject. But how can this be done?
First I tried the "obvious" way, along these lines:
sage: from sage.structure.parent_gens import ParentWithG
On Sun, Oct 17, 2010 at 6:39 AM, Dr. David Kirkby
wrote:
> On 10/16/10 01:21 PM, Burcin Erocal wrote:
>>
>> Hi,
>>
>> Motivated by the call for the bug days, here is an idea to manage the
>> rapidly increasing number of "new" tickets on trac.
>
> It is well known in industry that the cost to fix b
On Oct 18, 8:06 am, Johannes wrote:
> hi list
> I have this simple code:
>
> latex(matrix([[-(a + 1)/b]]))
>
> and i get:
>
> \left(\begin{array}{r}
> \frac{-a + 1}{b}
> \end{array}\right)
>
> but it should be
>
> \left(\begin{array}{r}
> \frac{-a - 1}{b}
> \end{array}\right)
>
> or
>
> \left(\beg
On 10/18/10 9:29 AM, Chris Seberino wrote:
There seems to be a long running bug in the saving of Sage worksheets
that chops off the ends and other parts.
Sage worksheets are saved in binary. If they could be saved in some
text version like XML, wouldn't that allow people to hand hack the
text f
Sorry, forget my question: I just found that they have a __eq__
method.
But still, I think they should be unique parent structures.
Cheers,
Simon
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Hi!
I almost finished to re-implement free algebras based on Gap, which
should provide much faster arithmetic and allows to study non-
associative and non-unital algebras.
It seems that FreeAlgebraQuotients require the associative case,
doesn't it?
Now I wonder how free algebra quotients are com
hi list
I have this simple code:
latex(matrix([[-(a + 1)/b]]))
and i get:
\left(\begin{array}{r}
\frac{-a + 1}{b}
\end{array}\right)
but it should be
\left(\begin{array}{r}
\frac{-a - 1}{b}
\end{array}\right)
or
\left(\begin{array}{r}
\frac{-(a + 1)}{b}
\end{array}\right)
greatz Johannes
Wolfram Alpha is a low bandwidth portal into Mathematica that doesn't
provide the full notebook interface.
Does something like this exist for Sage? It seems it would be
valuable marketing wise because it is even easier to try that than the
freely available notebook interfaces.The free public
There seems to be a long running bug in the saving of Sage worksheets
that chops off the ends and other parts.
Sage worksheets are saved in binary. If they could be saved in some
text version like XML, wouldn't that allow people to hand hack the
text file when the saving step of notebooks chops o
Hi
On Mon, Oct 18, 2010 at 07:28:23AM -0500, Jason Grout wrote:
> As an offhand idea, with the disclaimer that I haven't read this
> entire thread, but an idea that has caused such problems before.
> Did you move the Sage directory? There are still lots of loose ends
> that are left dangling when
On 10/17/10 9:39 AM, Dr. David Kirkby wrote:
On 10/17/10 03:16 PM, Jan Groenewald wrote:
Hi
I believe any belief that having "bug hunt weeks" is a long term
solution is rather flawed. The issues should be tackled at an
earlier stage.
Despite not being a sufficient solution, are they not none
On 10/18/10 6:43 AM, Jan Groenewald wrote:
Hi
On Sun, Oct 17, 2010 at 09:37:55AM +0200, Jan Groenewald wrote:
Looking for libpari-gmp.so, I found these:
r...@capepoint:/usr/local/src/sage-4.5.3/local/lib#ls -l libpari*
-rwxr-xr-x 1 root root 3160120 Oct 11 17:06 libpari-gmp.so.2
-rwxr-xr-x 1 ro
=== Introduction ===
I would like to have the Parma Polyhedra Library (PPL) included
as a standard spkg. My goal is to rewrite as much of the
sage.geometry.* modules on top of a Cython PPL wrapper as opposed
to piping ASCII to/from cddlib. Some of the reasons are:
* PPL is already faster by itsel
Hi
On Mon, Oct 18, 2010 at 01:46:48PM +0200, Jeroen Demeyer wrote:
> On 2010-10-18 13:43, Jan Groenewald wrote:
> > Also, why does this depend on the system libgmp and not the sage libgmp?
>
> This depends on the setting of LD_LIBRARY_FLAG. If you do the same
> within "sage -sh" you should get t
> Hi
>
> On Sun, Oct 17, 2010 at 09:37:55AM +0200, Jan Groenewald wrote:
> > Looking for libpari-gmp.so, I found these:
> > r...@capepoint:/usr/local/src/sage-4.5.3/local/lib#ls -l libpari*
> > -rwxr-xr-x 1 root root 3160120 Oct 11 17:06 libpari-gmp.so.2
> > -rwxr-xr-x 1 root root 3160120 Oct 11 1
On 2010-10-18 13:43, Jan Groenewald wrote:
> Also, why does this depend on the system libgmp and not the sage libgmp?
This depends on the setting of LD_LIBRARY_FLAG. If you do the same
within "sage -sh" you should get the correct library.
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Hi
On Sun, Oct 17, 2010 at 09:37:55AM +0200, Jan Groenewald wrote:
> Looking for libpari-gmp.so, I found these:
> r...@capepoint:/usr/local/src/sage-4.5.3/local/lib#ls -l libpari*
> -rwxr-xr-x 1 root root 3160120 Oct 11 17:06 libpari-gmp.so.2
> -rwxr-xr-x 1 root root 3160120 Oct 11 17:06 libpari-g
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