#15820: Implement sequences of bounded integers
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Reporter: SimonKing | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: algebra | Resolution:
Keywords: sequence bounded | Merged in:
integer | Reviewers: Jeroen Demeyer, Simon
Authors: Simon King, | King
Jeroen Demeyer | Work issues: interrupt handling
Report Upstream: N/A | Commit:
Branch: | 63d2693eb4915632e3cb806730a4eb56dc26008e
u/SimonKing/ticket/15820 | Stopgaps:
Dependencies: #17195, #17196 |
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Comment (by jdemeyer):
Replying to [comment:354 SimonKing]:
> What do you think about the name `biseq_start_of_overlap`, and switching
back to the old rôle of the arguments (i.e., we search for the smallest
possible start index of a terminal segment of S1 that coincides with an
initial segment of S2)?
Well, the thing that bothered me most about the old `biseq_max_overlap`
function was the implicit start index of 1, which is unexpected (why 1?)
and couldn't be changed (unlike `biseq_contains`).
I changed the names and ordering of the arguments to make it more clear
that `biseq_contains` and `biseq_reverse_contains` are in fact very
similar: the first finds `i` such that `S1[i:]` starts with `S2`, the
second finds `i` such that `S1` starts with `S2[i:]`.
I'm certainly open for changes, I just would like the functions to be as
intuitive as possible for people ''not knowing about your application of
quiver algebras''. For example, the word "overlap" doesn't mean anything
to me when you talk just about sequences of integers.
--
Ticket URL: <http://trac.sagemath.org/ticket/15820#comment:359>
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