#16269: Cartesian Products of additive groups
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Reporter: ncohen | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: categories | Resolution:
Keywords: | Merged in:
Authors: Nathann Cohen, | Reviewers:
Nicolas M. Thiéry | Work issues:
Report Upstream: N/A | Commit:
Branch: u/ncohen/16269 | d22e245049e26dd10522d3514603868701a286fb
Dependencies: | Stopgaps:
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Comment (by ncohen):
Yo !
> Ah shoot, in the mean time I answered your private e-mail about this
> :-) Shall I copy paste my answer here?
For others: the answer was that I should just use the
`.summand_projection` commands in the code and not iter on the elements
for it could have a different meaning elsewhere.
I asked you how to guess the length of the vector though... Which I will
need to call the projection commands.
> I agree.
>
> If this special situation is not used too much elsewhere (i.e. if all
> test pass), then I'd say let's go. And if not, I guess we will need to
> fix/workaround the problem in FiniteEnumeratedSet.
Well, not all tests pass actually, I just noticed. The first examples in
the doc of categories/cartesian_product use enumerated sets `>_<`
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16269#comment:20>
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