#6168: FLINT wrapper not reducing coefficients properly
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Reporter: dmharvey | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone:
Component: algebra | Keywords:
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It is possible to create FLINT {{{zmod_poly}}} objects whose coefficients
are not reduced mod n (where n is the modulus). This is difficult to show
directly in Sage, but here is an example symptom:
{{{
sage: R.<x> = PolynomialRing(Integers(15))
sage: S.<y> = PolynomialRing(Integers(5))
sage: f = S(5*x)
sage: f
0
sage: f == 0
False
sage: f.degree()
1
}}}
Internally the coefficient 5 is not reduced, but it prints as reduced.
This bug is probably the main cause of #5817.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6168>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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