#14239: symbolic radical expression for algebraic number
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Reporter: gagern | Owner: davidloeffler
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: number fields | Resolution:
Keywords: | Merged in:
Authors: Martin von Gagern | Reviewers: Marc Mezzarobba,
Report Upstream: N/A | Jeroen Demeyer
Branch: | Work issues:
u/gagern/ticket/14239 | Commit:
Dependencies: #17495, #16964 | 09683145989c437b59e02c02409d1dac05ac379d
| Stopgaps:
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Comment (by gagern):
Replying to [comment:75 jdemeyer]:
> Replying to [comment:67 gagern]:
> > However, it fails in cases where we are unable to find a radical
expression for the element even though we would have been able to find one
for the generator.
> I would just live with it for now.
That introduces regressions: stuff that used to convert to SR in the past
will fail to do so once this gets merged. I'd prefer to avoid such breaks
in backward compatibility, even if it means less elegant behavior.
> I don't like it because it makes things depend again on the choice of
generator...
That is true, but I can think of no way to maintain backwards
compatibility and avoid that dependence.
--
Ticket URL: <http://trac.sagemath.org/ticket/14239#comment:78>
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