#8327: Implement the universal cyclotomic field, using Zumbroich basis
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Reporter: nthiery | Owner:
Type: enhancement | Status:
needs_review
Priority: major | Milestone: sage-5.6
Component: number fields | Resolution:
Keywords: Cyclotomic field, Zumbroich basis | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Christian Stump, Simon King | Merged in:
Dependencies: #13727, #13728 | Stopgaps:
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Comment (by stumpc5):
Replying to [comment:123 nthiery]:
> Replying to [comment:122 stumpc5]:
> > > * why is the hash function test tagged with random ? does it depend
on the computer or something like that ?
> >
> > If I am not mistaken, the hash is only unique in a given Sage session.
>
> It is not required that the hash value of an object be unique across
> Sage session. However the implementation usually guarantees this,
> which is a good feature. In fact, most of the time in Sage, the hash
> value only depends on the architecture (32bits/64bits) and when this
> is the case, it is good to test it explicitly in order to get noticed
> in case the hash value would change for some reason
Thanks for the clarification!
Do you also happen to know how to handle the real conversion as in
{{{AA(QQbar(E(5) + E(5)^4))}}} in comment:118 ?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:125>
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