#5499: [with patch; needs work] Wrong precision when creating p-adic field
element
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Reporter: kedlaya | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.2
Component: number theory | Keywords:
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Comment(by kedlaya):
I was originally unsure whether this was simply because those doctests
depended on the old behavior. But in fact there is a real problem with the
patch, as I extracted from the second file on Michael's list.
{{{
sage: E=EllipticCurve('389a1')
sage: X,Y=E.modular_parametrization()
sage: q = X.parent().gen()
sage: E.defining_polynomial()(X,Y,1)
869*q^11 + 2151*q^12 - 2768*q^13 + O(q^14)
sage: E.defining_polynomial()(X,Y,1) + O(q^11)
870*q^11 + 2151*q^12 - 2768*q^13 + O(q^14)
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5499#comment:5>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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