On 1 Jun., 17:21, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Sun, Jun 1, 2008 at 7:57 AM, Georg S. Weber
>
> <[EMAIL PROTECTED]> wrote:
>
> > Hello Sage team,
>
> > great work so far, keep pushing forward!
> > I've got the following question:
>
> > Does a new SPKG, whose contents are licensed under GPLv3+ ("three
> > plus"),
> > fulfil your license requirement in order to become part of the Sage
> > core?
>
> No it does not.
>
> However, we intend to revisit this question -- by a vote of the JSAGE
> editorial board -- every few months, and it is very likely that
> at some point we will allow GPLv3+ code in the core.   But right
> now new GPLv3+ code will not be added to the core of Sage.
>
> Do you have a specific project in mind?
>
>  -- William
>


Wow,

lightspeed-fast response time from both of you, I'm astonished!

After several years of mathematical absence, since January I begin to
find some time.
The first version of SAGE I installed was 2.9.2, and I fell in love
with it. Though, the
bits and pieces of code I currently have are plain C, with an
interface written in Magma.
(It's about fast computation of Hecke Operators via Heilbronn-Manin
matrices for large
primes p.) Gabor Wiese asked me whether he was allowed to "release it
into the wild"
on the Workshop: Computations with Modular Forms, 17 - 23 August 2008,
Bristol, UK,
I said yes, and we agreed that some polishing work should happen till
then.

I'm in the middle of making a SPKG out of that code, but my interest
in SAGE is reaching
much further. There are quite some ideas for coding in the modular
symbols area that
finally want to get out of my head and into the shape of some software
for ten years now.
Apart from other obstacles, till SAGE entered the scene, there did not
seem a right place
where to put them. My other main area of interest are p-adic L-series,
same story here.

The current solution to access my algos from within SAGE is to put
them in a dynamic lib and
call them from within a cython wrapper. The incredible advantage of
SAGE as compared with
closed-source solutions is that one simply may read and check out the
sources, how all the
others were doing things. (Till January, "Python" only was a sort of
snake for me ;-)


Zum Wohl!
(I'm going to fetch me a beer right now, it's past 8pm.)
gsw

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