#9933: BooleanPolynomialRing not recognizing leading term of elements
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Reporter: mariah | Owner: malb
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-4.6
Component: commutative algebra | Keywords:
Author: Martin Albrecht | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by newvalueoldvalue):
* status: new => needs_review
* author: Mariah Lenox => Martin Albrecht
Comment:
The attached patch fixes the reported issue. In the process I also fixed a
very annoying performance issue
{{{
#!python
# Old
sage: B = BooleanPolynomialRing(200,'x')
sage: %timeit B("x0")
25 loops, best of 3: 17.1 ms per loop
# New
sage: B = BooleanPolynomialRing(200,'x')
sage: %timeit B("x0")
625 loops, best of 3: 11.6 µs per loop
# "optimal"
sage: gd = B.gens_dict()
sage: %timeit gd['x0']
625 loops, best of 3: 94.2 ns per loop
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9933#comment:1>
Sage <http://www.sagemath.org>
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