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parent of exponent getting too large in exponentiation in asymptotic ring #19965

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dkrenn opened this issue Jan 26, 2016 · 0 comments
Open

parent of exponent getting too large in exponentiation in asymptotic ring #19965

dkrenn opened this issue Jan 26, 2016 · 0 comments
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c: asymptotic expansions p: major / 3 t: bug

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@dkrenn
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dkrenn commented Jan 26, 2016

At the moment we have

sage: M.<n> = AsymptoticRing(growth_group='QQ^n * n^QQ', coefficient_ring=SR)
sage: (n.rpow(2)).parent()
Asymptotic Ring <QQ^n * n^SR> over Symbolic Ring

but the "nicer" and more expected result would be

Asymptotic Ring <QQ^n * n^QQ> over Symbolic Ring

This is a follow-up ticket to #19946.

CC: @cheuberg

Component: asymptotic expansions

Issue created by migration from https://trac.sagemath.org/ticket/19965
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@mkoeppe @dkrenn