#16662: OA for n=1046,1059,2164,3992,3994
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Reporter: ncohen | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.4
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Nathann Cohen | Work issues:
Report Upstream: N/A | Commit:
Branch: u/ncohen/16662 | 8fcaed066b7f110af10c6a471cbebcad370bd312
Dependencies: #16604 | Stopgaps:
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Comment (by vdelecroix):
Replying to [comment:17 ncohen]:
> Yo !
>
> > Seems to be the only one. If you want to write this find function
that's also an option.
>
> I tried several times and it really was complicated. And required a lot
of copy/paste.
So let us not do that.
> > A possible alternative is to write a function that checks that:
> > - those constructions are not useless (i.e. there are no other way to
get them)
>
> Why do you care so much about not having useless constructions ? It is
good to have several ways to generate the same design. Some paths may be
better than others, some paths may result in designs with different
properties...
All right. Then there are thousands of thwarts construction that you may
want to consider...
> > - there is nothing more to build with these thwarts (this is pretty
much what I wrote)
>
> The problem with that is that it is true with the current OA that Sage
can build. Wait a bit and new one will appear that may change that.
This is cool. If a ticket creates new OA that allows more of this
construction, then it will create an error in a doctest and the database
will be automatically updated. Nevertheless, filling the cache up to 3000
is too long for a doctest. So I can keep my file under my pillow and run
it from time to time.
Vincent
--
Ticket URL: <http://trac.sagemath.org/ticket/16662#comment:18>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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