#9054: create a class for basic function_field arithmetic for Sage
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Reporter: was
| Owner: was
Type: enhancement
| Status: new
Priority: major
| Milestone: sage-wishlist
Component: algebra
| Resolution:
Keywords:
| Work_issues:
Upstream: N/A
| Reviewer:
Author: William Stein, Robert Bradshaw, Maarten Derickx, Moritz Minzlaff
| Merged:
Dependencies: #9094, #11034
|
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Comment(by SimonKing):
Just for your information: I resumed work on #10667.
Testing whether QQ is a ring works faster with the methods from #11115 and
#10667 than with using the current `is_Ring`:
{{{
sage: C = CommutativeRings().objects()
sage: QQ in C
True
sage: %timeit QQ in C
625 loops, best of 3: 3.88 µs per loop
}}}
versus
{{{
sage: from sage.rings.ring import is_Ring
sage: %timeit is_Ring(QQ)
625 loops, best of 3: 5.06 µs per loop
}}}
Of course, just testing the class is a lot faster:
{{{
sage: from sage.rings.ring import Ring
sage: %timeit isinstance(QQ,Ring)
625 loops, best of 3: 666 ns per loop
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9054#comment:45>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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