#15276: Translation problem between Sage and Gap for cyclotomic field
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Reporter: vincent.beck | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.13
Component: algebra | Keywords: CyclotomicField
Merged in: | Authors: Vincent Beck
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Something strange is happening with the command CyclotomicField and the
order of the associated generator. Everything works very well for n which
is different from 2 mod 4 but does not work for n =2 mod 4 as seen in the
following lines.
{{{sage: k.<s>=CyclotomicField(7)
sage: gap(s)
E(7)
sage: k(_)
s
sage: k.<s>=CyclotomicField (6)
sage: gap(s)
E(3)
sage: k(gap(s)) s - 1
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15276>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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