#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 | Resolution:
Keywords: QQbar, polynomial | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by nbruin):
The weirdness is really just limited to the difference in behaviour
between these:
{{{
sage: AA['x'](var('x'))
x
sage: QQbar['x'](var('x'))
NotImplementedError: symbol
}}}
The thing that's failing in the latter case is
{{{
QQbar._element_constructor_(x)
}}}
and
{{{
AA._element_constructor_(x)
}}}
fails in exactly the same way. That suggest that in the case of `AA['x']`
something is tried before resorting to the thing that fails for
`QQbar['x']`.
For instance,
{{{
AA['y'](var('x'))
QQbar['y'](var('x'))
}}}
both (rightly) fail,but with significantly different tracebacks. This
might give some indication of what is tried for `AA` but not for `QQbar`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14485#comment:2>
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