#16884: Quasi-difference matrices (database+is_QDM)
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Reporter: ncohen | Owner:
Type: enhancement | Status: positive_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: public/16884 | f0b7bab049e078a663702a935ea5f09facd396ed
Dependencies: #16879 | Stopgaps:
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Changes (by vdelecroix):
* status: needs_info => positive_review
Comment:
Replying to [comment:16 ncohen]:
> > 3) When there does exist a good `QDM` to build an `OA(k,n)`, could we
use `_OA_cache_set(kk,n,True)` instead of `_OA_cache_set(k,n,True)`. We
will win some few calls (especially when running `MOLS_table`).
>
> I don't understand your sentence `O_o`
Nevermind. I was wrong. My question should have been: if I ask for
`orthogonal_array(None,n,existence=True)` is there a better strategy to
adopt when dealing with quasi-difference matrix case. The answer is yes,
but it is not nice to write down in your flow of `if/elif/elif/...`.
Good to go!
Vincent
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Ticket URL: <http://trac.sagemath.org/ticket/16884#comment:17>
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