#20666: non uniform behavior of powers for polynomials
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Reporter: vdelecroix | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.3
Component: algebra | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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In #20086 a `nth_root` method was proposed to be able to take fractional
powers of polynomials. Though this was not implemented for all polynomial
rings. On sage-7.3.beta0 we have
{{{
sage: x = polygen(ZZ)
sage: (x**2)**(1/2)
x
sage: x = polygen(GF(4))
sage: (x**2)**(1/2)
Traceback (most recent call last):
...
TypeError: Only integral powers defined.
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/20666>
Sage <http://www.sagemath.org>
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