#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 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.
> But I am not sure you will ever get the `OA(10,1046)` in less than a
minute
Well, you need to fill the cache at first, like for all constructions.
> 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...
> - 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.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16662#comment:17>
Sage <http://www.sagemath.org>
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