#19063: Coercions and basic arithmetic for complex balls
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Reporter: mmezzarobba | Owner:
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-6.9
Component: numerical | Resolution:
Keywords: arb | Merged in:
Authors: Marc Mezzarobba, | Reviewers: Clemens Heuberger,
Clemens Heuberger | Marc Mezzarobba
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/cheuberg/19063-acb | 8479dd21f1709c0a9f4e234eb7b280dc6e39ca78
Dependencies: #18546 | Stopgaps:
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Comment (by mmezzarobba):
Replying to [comment:26 jdemeyer]:
> Or perhaps `above_abs` is not exactly the same as `magnitude` since the
latter returns a real number instead of a ball. Still, it would be nice to
implement `magnitude` like `RIF`.
Yes.
Regarding `center()`, I'd prefer to keep the name `mid()`, if only to
emphazise that the midpoint is part of the defining data of the ball (and
thus always is exact, while `mpfi_mid()` involves a rounding), but I have
nothing against adding `center()` as an alias.
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Ticket URL: <http://trac.sagemath.org/ticket/19063#comment:27>
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