#7518: flint -- hangs computing certain degenerate case xgcd's
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Reporter: was | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone: sage-4.3
Component: basic arithmetic | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Observe:
{{{
sage: Q.<x> = ZZ[]
sage: gcd(Q(2),x^2)
1
sage: xgcd(Q(2),x^2)
<hang forever!>
}}}
whereas
{{{
sage: Q.<x> = PolynomialRing(ZZ,implementation="NTL")
sage: type(x)
<type
'sage.rings.polynomial.polynomial_integer_dense_ntl.Polynomial_integer_dense_ntl'>
sage: gcd(Q(2),x^2)
1
sage: xgcd(Q(2),x^2)
(4, 2, 0)
}}}
works fine.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7518>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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