#6766: faster powers of factorizations
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Reporter: fwclarke | Owner: tbd
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.1.2
Component: algebra | Keywords:
Reviewer: | Author: Francis Clarke
Merged: |
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The patch provides a much faster method for computing powers of
commutative factorizations. This implements a suggestion made by John
Cremona in #5188.
The speed-up is most marked for factorizations of ideals in number fields.
Before:
{{{
sage: f = NumberField(x^2 + 23, 'a').factor(47)
sage: timeit('f^10')
5 loops, best of 3: 134 ms per loop
}}}
After:
{{{
sage: f = NumberField(x^2 + 23, 'a').factor(47)
sage: timeit('f^10')
625 loops, best of 3: 571 µs per loop
}}}
In addition, five redundant lines have been removed from the `__init__`
function of the `Factorization` class.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6766>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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