#10951: ecmfactor should take as optional argument the sigma value
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Reporter: zimmerma | Owner: tbd
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-4.7
Component: factorization | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Changes (by zimmerma):
* cc: AlexGhitza, cremona (added)
* status: new => needs_review
Comment:
the attached file does two things:
(1) if an optional sigma=nnn input is given to ecmfactor, it uses that
value (nnn) to choose the elliptic curve, instead of a random one. This
allows to get a deterministic behaviour;
(2) if a non-trivial factor was found (with a random or user-given sigma)
it is returned by
ecmfactor, which now returns (True, N, sigma)
Paul
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10951#comment:1>
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