#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: | d2f72c655cc22f18c9029da5feff12f35eb0dbf8
| Stopgaps:
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Comment (by jdemeyer):
Replying to [comment:41 gagern]:
> For `NumberFieldElement` the computation is only performed for the
generator, and only for non-cyclotomic fields, so the code we're talking
about is one of may possible cases in a larger control flow structure.
What is more, the cast from `NumberFieldElement` to `AA` resp. `QQbar` is
easy and cheap. The converse has quite a bulky syntax, as you can see in
comment:3, and can be quite costly, as I mentioned in comment:26 item 2.
All of this can be fixed. I understand that you're unhappy with the
current situation and I'm not disagreeing. But instead of working around
these problems, they should be fixed. If the wheel is broken, then fix it
instead of reinventing the non-broken wheel.
--
Ticket URL: <http://trac.sagemath.org/ticket/14239#comment:42>
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