#2957: Singular multivariate polynomials are buggy on exponent overflow
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Reporter: cwitty | Owner: somebody
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.1
Component: basic arithmetic | Resolution:
Keywords: |
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Comment (by malb):
I'm going to upload a fix in a sec, but it comes at a cost:
== Before ==
{{{
sage: P.<x,y> = PolynomialRing(QQ)
sage: %timeit x*y
1000000 loops, best of 3: 288 ns per loop
sage: f = x + 1
sage: g = y + 1
sage: %timeit f*g
1000000 loops, best of 3: 462 ns per loop
}}}
== After ==
{{{
sage: P.<x,y> = PolynomialRing(QQ)
sage: %timeit x*y
1000000 loops, best of 3: 314 ns per loop
sage: f = x + 1
sage: g = y + 1
sage: %timeit f*g
1000000 loops, best of 3: 501 ns per loop
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2957#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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