#14485: Creation of a polynomial over QQbar
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Reporter: tmonteil | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-5.10
Component: commutative algebra | Keywords: QQbar, polynomial
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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Here is the issue: there is no problem buildind a polynomial over AA:
{{{
sage: R = AA[x]
sage: P = R(x^6+x^5+x^4-x^3+x^2-x+2/5)
}}}
But the same operation does not work on QQbar:
{{{
sage: S = QQbar[x]
sage: Q = S(x^6+x^5+x^4-x^3+x^2-x+2/5)
Traceback (most recent call last)
...
NotImplementedError: symbol
}}}
Hovewer, this workaround works:
{{{
sage: Q = P.change_ring(QQbar)
}}}
Weird isn't it ?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14485>
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