#9061: Create an efficient SUM command
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Reporter: ncohen | Owner: jason, jkantor
Type: defect | Status: new
Priority: major | Milestone: sage-4.4.3
Component: numerical | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by jason):
For me, the balanced_sum function gives these timings:
{{{
sage: p = MixedIntegerLinearProgram()
sage: v = p.new_variable()
sage: sage: %timeit sum([v[i] for i in xrange(900)])
5 loops, best of 3: 1.48 s per loop
sage: p = MixedIntegerLinearProgram()
sage: v = p.new_variable()
sage: %timeit sage.misc.misc.balanced_sum([v[i] for i in xrange(900)])
25 loops, best of 3: 28.2 ms per loop
}}}
So I guess your function still wins (which isn't much of a surprise).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9061#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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