>
> But right now, what Nathann is trying to do is rather orthogonal to
> these questions. If somebody comes with a nice class that *does not*
> slow down his construction code, everybody will be happy. Sage is open
> to contributions and not only to critics ;-P
>
> Thanks for having a look
Yeah, I also found some morphisms in the polynomial ring code, but like the
QQ <-> ZZ code, it seemed dated (and hence might not follow recommended
practices).
As for sage.algebras.*, I didn't really see anything other than Boolean
return values.
On Fri, Jun 6, 2014 at 9:21 AM, Vincent Delecroix
On Saturday, June 7, 2014 2:50:41 PM UTC+1, leif wrote:
>
> Is ccache agnostic to the comment on the first line of each
> Cython-generated C/C++ file?
>
Jein ;-)
Leads to a direct mode cache miss. But the slightly slower preprocessor
mode will ignore comments and hence match.
--
You receiv
Volker Braun wrote:
There are some global dependencies, most notably setup.py. So if you
change that then every *.pyx file is re-cythonized, and hence gcc called
on every one of them. If there was no change to the Cython output then
gcc should answer everything from ccache, so it would still be f
Ivan Andrus wrote:
On Jun 6, 2014, at 7:11 AM, Jason Grout wrote:
On 6/5/14, 2:33, Ivan Andrus wrote:
Are there logs (and if so where are they?) for aleph.sagemath.org? I'm trying
to figure out what sorts of things the iOS app is used for.
Yes, there are logs. Right now, we log remote i
This is a bug, elements should always be of the type Parent.element_class.
The element constructor right now is
def _element_constructor_(self, x):
"""
TESTS::
sage: B = BraidGroup(4)
sage: B([1, 2, 3]) # indirect doctest
s0*s1*s2
Vincent Delecroix wrote:
Have a look at the commands
chown: change the owner/group
chmod: change permissions
What you have to do is to make /opt/sage-6.2 writable by you, not the
whole /opt. The simplest way, assuming that your username is alasdair,
is to change the owner of everything in /o
I have found the following behaviour:
{{{
sage: B=BraidGroup(4)
sage: b=B([1,2,3])
sage: type(b)
sage: type(b*b)
}}}
Both b and b*b have the same parent, but they belong to different classes.
I guess that the fact that they are constructed by different methods
(BraidGroup.__call__ vs, BraidGr
Hi,
I am refactoring subset / subword at #10534. The "elements" are right
now of type Set_object_enumerated. But I really do not like it since:
sage: from sage.sets.set import Set_object_enumerated
sage: Set_object_enumerated((Set(()), Set((2,
{{2}, {}}
sage: Set_object_enumerated((Set(()), S
There are some global dependencies, most notably setup.py. So if you change
that then every *.pyx file is re-cythonized, and hence gcc called on every
one of them. If there was no change to the Cython output then gcc should
answer everything from ccache, so it would still be fast. Of course you
There are many places where Sage provides a nice frontend class while the
actual computation is implemented differently. Of course you could just use
libsingular directly to compute with polynomial, right? ;-)
In particular, it would be perfectly reasonable to have a "frontend" class
that acts
Have a look at the commands
chown: change the owner/group
chmod: change permissions
What you have to do is to make /opt/sage-6.2 writable by you, not the
whole /opt. The simplest way, assuming that your username is alasdair,
is to change the owner of everything in /opt/sage-6.2 with
sudo chown
Thanks for that - I compiled it as root, so that it could write to the
directory /opt/sage-6.2. There should have been no permission problems.
(In essence, I did what I've always done: opened up a login shell as root,
and installed sage in the directory /opt/sage-x.y.
However! I've just di
> Actually, I was kind of surprised that they were just lists of lists when I
> was looking at the code. Surely one wants more structure than that, or
> don't they have more structure? This is exactly the kind of thing we are
> just talking about with the game theory code - we want a class becaus
On Monday, May 12, 2014 11:36:20 AM UTC+2, P Purkayastha wrote:
>
> ... It shouldn't have upgraded anything, but it still decided to compile a
> bunch of packages anyway.
>
I have witnessed the same thing recently. Someone with knowledge of the
code please correct me. I think what is probably ha
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