#9138: Categories for all rings
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Reporter: jbandlow | Owner: nthiery
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.7.1
Component: categories | Keywords: introspection, categories
for rings
Work_issues: Steenrod algebras | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: sage-4.7, #11268, #11139,
#9976, #9944, #11269
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Comment(by SimonKing):
That said: The generic from_base_ring does exactly the same as my new
approach -- but it constructs the unit again and again and again.
Therefore, if the unit is available during initialisation, then my
approach is faster.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9138#comment:74>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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