#13692: factor_trial_division returns Python longs as exponents
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Reporter: dimpase | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-5.5
Component: number theory | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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unlike the rest (?) of Sage, factor_trial_division returns wants exponents
of powers to be Python longs:
{{{
sage: from sage.rings.factorint import factor_trial_division
sage: [t for t in factor_trial_division(8)]
[(2, 3L)]
}}}
It is a bug or a feature? It leads to this kind of data also being
returned by factor():
{{{
sage: [t for t in Integer(8).factor(limit=1000)]
[(2, 3L)]
}}}
as opposed to
{{{
sage: [t for t in Integer(8).factor()]
[(2, 3)]
}}}
See this [https://groups.google.com/d/topic/sage-
support/whnvwlDrAEo/discussion sage-support thread].
Something should be fixed - either factor(), or factor_trial_division()
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13692>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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