#17194: Minimal bindings for optional arb package; RealIntervalFieldElement.psi
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Reporter: cheuberg | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: numerical | Resolution:
Keywords: arb, digamma | Merged in:
function, real interval field | Reviewers:
Authors: Clemens Heuberger | Work issues:
Report Upstream: N/A | Commit:
Branch: | a0afebd76117cdaeae6d8a408a2b1071ec3b8cd2
u/cheuberg/rings/real_arb | Stopgaps:
Dependencies: #16747 |
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Old description:
> In #16747, the optional arb package is proposed for inclusion in sage.
> That ticket did not have any python bindings for the library.
>
> In the present ticket, rather minimal bindings are provided.
>
> As a proof of concept, the digamma function of a
> `RealIntervalFieldElement` is implemented by converting it to an `Arb`,
> computing the digamma function via the arb library, and converting the
> result back.
>
> In its present minimal form, this is not part of the sage coercion world.
New description:
In #16747, the optional arb package is proposed for inclusion in sage.
That ticket did not have any python bindings for the library.
In the present ticket, rather minimal bindings are provided.
As a proof of concept, the digamma function of a
`RealIntervalFieldElement` is implemented by converting it to an
`RealBallElement`, computing the digamma function via the arb library, and
converting the result back.
In its present minimal form, this is not part of the sage coercion world.
--
Comment (by cheuberg):
Replying to [comment:18 jdemeyer]:
> I slightly prefer the shorter name `RealBallElement` (like
`RealDoubleElement`), but I can live with `RealBallFieldElement`.
As we apparently do not have a systematic naming scheme here, I renamed it
to the shorter `RealBallElement`, as suggested.
--
Ticket URL: <http://trac.sagemath.org/ticket/17194#comment:21>
Sage <http://www.sagemath.org>
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