#20400: Conversion NumberField -> QQbar should always work for rationals
-----------------------------+-------------------------------------
Reporter: vdelecroix | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.2
Component: number fields | Keywords:
Merged in: | Authors: Vincent Delecroix
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies: #14485
Stopgaps: |
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After #14485 we have
{{{
sage: NF.<alpha> = NumberField(x^5 + 7*x + 3)
sage: QQbar(alpha**5 + 7*alpha)
Traceback (most recent call last):
...
ValueError: need a real or complex embedding to convert number field
element to algebraic number
}}}
but rationals are non ambiguous with respect to their embeddings.
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Ticket URL: <http://trac.sagemath.org/ticket/20400>
Sage <http://www.sagemath.org>
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