On 21 May 2011 10:35, Juanlu001 wrote:
> Yesterday I was playing with symbolic expressions, and I had to apply
> divide_both_sides(), and I encountered something funny: you can divide
> by zero (with a bit of care). To show this, I've taken the classic
> "proof" and created a worksheet:
>
> http:/
On 23 Mai, 02:45, Kwankyu Lee wrote:
> Then my worry is
> that the "translating" code may clutter the main code implementing the
> objects.
No. The main code implementing the objects is not touched by pickling/
unpickling.
> I feel that there should be some infrastructure to guide writing
> the
On 23 May 2011 03:05, François wrote:
> OK I did some analysis on the failure of
> sage -t -long -force_lib "devel/sage/sage/gsl/interpolation.pyx"
>
> A list of point is initialized with:
> v = [(i + sin(i)/2, i+cos(i^2)) for i in range(10)]
> then a spline is created:
> s = spline(v)
> The failu
On 23 May 2011 05:51, Rob Beezer wrote:
> On May 22, 7:26 pm, François wrote:
>> If I am not mistaken about the meaning of the distribution_function method
>> gsl may have actually corrected a bug and +oo is actually the value you are
>> supposed to get, see this
>> graph:http://en.wikipedia.org
Hi Simon,
Thanks for this little expose - I'm just beginning to warm up to the
category framework so this is very helpful.
Cheers,
Christian
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On May 22, 7:26 pm, François wrote:
> If I am not mistaken about the meaning of the distribution_function method
> gsl may have actually corrected a bug and +oo is actually the value you are
> supposed to get, see this
> graph:http://en.wikipedia.org/wiki/File:Chi-square_distributionPDF.svg
> Wou
And in the other test we actually look at the chi squared distribution for
k=1:
sage: nu = 1
sage: T = RealDistribution('chisquared', nu)
sage: T.get_random_element() # random
0.103230507883
sage: T.distribution_function(0)
0.0
If I am not mistaken
OK I did some analysis on the failure of
sage -t -long -force_lib "devel/sage/sage/gsl/interpolation.pyx"
A list of point is initialized with:
v = [(i + sin(i)/2, i+cos(i^2)) for i in range(10)]
then a spline is created:
s = spline(v)
The failure is when we try this:
show(point(v) + plot(s,0,11, h
Hi Simon,
It seems to me that
Your remarks: If the internal data structure has changed, then it is
imperative that data stored in the old format will be correctly translated
into the new format when unpickling. ... "upgrading the old objects pickled
by users" must be part of the usual unpickl
On Sun, May 22, 2011 at 11:37:17AM +0200, Christian Nassau wrote:
> Thanks a lot for these hints! I need to implement a category of
> multi-graded modules/algebras over a Hopf algebra (the Steenrod
> algebra, specifically), so I thought subclassing AlgebrasWithBasis
> would be a good idea... I've n
On Thu, Apr 28, 2011 at 7:30 AM, Dr. David Kirkby
wrote:
> Hi,
> it has been reported that there are issues in trying to build Maxima on
> Cygwin
> using ECL. Does this look like an ECL issue. See error message at
>
> http://trac.sagemath.org/sage_trac/ticket/11260
>
I can confirm that this is _n
On 05/20/11 08:40 PM, Francois
wrote:
I created a package of The GNU Scientific library (GSL) 1.15, which was
released a few weeks ago) and put it here.
http://boxen.math.washington.edu/home/kirkby/patches/gsl-1.15.spkg
I tried to build sage-4.7.rc3 using this version of gsl rather than the
ol
Hi Christian,
On 22 Mai, 11:37, Christian Nassau wrote:
> (I did notice that there already is a category for graded modules, but
> it seems to be largely empty. I suppose that framework is still in the
> making.)
It depends on what you want to do with the categories.
Perhaps you are already hap
Hi Florent,
On 22 Mai, 10:37, Florent Hivert wrote:
> I had a very similar problem with the test suite error messages which sometimg
> slowed sown the suite but several order of magnitude. I solved this issue in
> #8742 by creating a class for lazy format string. I'm not sure this will solve
> yo
Hi Nicolas,
Thanks a lot for these hints! I need to implement a category of
multi-graded modules/algebras over a Hopf algebra (the Steenrod algebra,
specifically), so I thought subclassing AlgebrasWithBasis would be a
good idea... I've now followed your example instead, and it all seems to
wo
Hi all,
I am trying to build sage4.6.2 from source.
I get the following error and sage is not building.
As the message tells : the python is installed properly but test on it
fails. Because of which sage is also unable to build.
Here is info about my system :
Fedora : 2.6.34.8-68.fc13.i686.PAE
gc
Hi Simon,
> This post has two purposes: An advertisement for trac ticket #11342,
> and a technical question about a trick used in that ticket.
>
> First, the question.
>
> Usually, an error is raised with an error message. And thus, the cdef
> function sage.structure.parent.raise_att
Hi!
This post has two purposes: An advertisement for trac ticket #11342,
and a technical question about a trick used in that ticket.
First, the question.
Usually, an error is raised with an error message. And thus, the cdef
function sage.structure.parent.raise_attribute_error(P,name) first
crea
Hi Kwankyu
On 22 Mai, 07:11, Kwankyu Lee wrote:
> I want to be more informed about this pickled Sage objects stored in the
> pickle jar. First let me explain what I understand. The pickle jar is there
> to ensure that upgrading Sage does not break unpickling of Sage objects
> pickled in a previou
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