#17557: creating a (136,4,1)-BIBD raises an exception
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Reporter: ncohen | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.5
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Nathann Cohen | Work issues:
Report Upstream: N/A | Commit:
Branch: | 31cee6143c9157273d33dc1d311f288cc0eaf3b5
u/vdelecroix/17557 | Stopgaps:
Dependencies: |
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Comment (by vdelecroix):
Replying to [comment:9 ncohen]:
> Yo !
>
> > The values from `0` to `99` were already tested in a loop above. And
it would be better if the specific value `v=136` is tested alone. See my
commit.
>
> Oh, sorry. But instead of this complicated loop with random values and
the if to set the modulos right, could you just change the 100 to 400 ? It
takes 3 seconds, and is way more systematic and easier to read.
Actually, I was wrong. The first test checks the function `v_4_1_BIBD`
while the second one checks `designs.balanced_incomplete_block_design`. So
it is fine to start again from `13`.
Vincent
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Ticket URL: <http://trac.sagemath.org/ticket/17557#comment:11>
Sage <http://www.sagemath.org>
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