#8239: misleading teichmuller behaviour
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Reporter: dmharvey | Owner: roed
Type: defect | Status: new
Priority: major | Milestone:
Component: padics | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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This is kind of misleading:
{{{
sage: K.<a> = Qq(25)
sage: K.teichmuller(K(2/5))
2*5^-1 + 1 + 2*5 + 5^2 + 3*5^3 + 4*5^4 + 2*5^5 + 3*5^6 + 3*5^8 + 2*5^9 +
2*5^10 + 4*5^12 + 5^13 + 3*5^14 + 2*5^15 + 4*5^16 + 4*5^18 + O(5^19)
}}}
It should raise an exception.
The prime case behaves as I would expect:
{{{
sage: K = Qp(5)
sage: K.teichmuller(K(2/5))
Traceback (click to the left of this block for traceback)
...
ValueError: cannot set negative valuation element to Teichmuller
representative.
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8239>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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