#18565: sequences in SageMath
-------------------------------------+-------------------------------------
Reporter: dkrenn | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.8
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Daniel Krenn | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/dkrenn/sequences/base | fa5c40a727f7149fee86e893fc52f27455622929
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Description changed by dkrenn:
Old description:
> similar to
> {{{
> graphs.some_graph
> }}}
> or to
> {{{
> codes.some_code
> }}}
> (and similar), I propose to introduce
> {{{
> sequences.some_sequence
> }}}
> which should provide a unified access point to all possible sequences in
> !SageMath. For example, there is {{{fibonacci_sequence}}} in
> {{{sage.combinat.combinat}}}, {{{binary_recurring_sequence}}} (somewhere
> in combinat) and various other code.
>
> One motivation for creating this, is to include here many sequences,
> which can be calculated term-by-term (from the previously calculated
> ones, i.e., recursively) or where the first N terms can be calculated at
> once efficiently.
> Nevertheless, it can also provide an interface to sequences, where each
> term can be calculated explicitly (without dealing with the previous
> ones).
New description:
similar to
{{{
graphs.some_graph
}}}
or to
{{{
codes.some_code
}}}
(and similar), I propose to introduce
{{{
sequences.some_sequence
}}}
which should provide a unified access point to all possible sequences in
!SageMath. For example, there is {{{fibonacci_sequence}}} in
{{{sage.combinat.combinat}}}, {{{binary_recurring_sequence}}} (somewhere
in combinat) and various other code.
One motivation for creating this, is to include here many sequences, which
can be calculated term-by-term (from the previously calculated ones, i.e.,
recursively) or where the first N terms can be calculated at once
efficiently.
Nevertheless, it can also provide an interface to sequences, where each
term can be calculated explicitly (without dealing with the previous
ones).
See the discussion on [[https://groups.google.com/forum/#!topic/sage-
devel/L-wSCu4fXe8|sage-devel]]
--
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Ticket URL: <http://trac.sagemath.org/ticket/18565#comment:1>
Sage <http://www.sagemath.org>
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