#20261: Coercion of 0 in cyclotomic field fails
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Reporter: fstromberg | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.2
Component: coercion | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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In some cases the element 0 of one cyclotomic field can not be coerced
properly to 0 in another cyclotomic field.
For instance tested in Sage 7.1:
sage: K1=CyclotomicField(12)
sage: K2=CyclotomicField(6)
sage: K1(K2(0))
0
sage: K2(K1(0))
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
...
TypeError: unable to coerce <class 'sage.rings.infinity.PlusInfinity'> to
an integer
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Ticket URL: <http://trac.sagemath.org/ticket/20261>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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