#5080: [with patch, needs work] Bug in decomposing modular symbol subspace
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Reporter: robertwb | Owner: craigcitro
Type: defect | Status: new
Priority: major | Milestone: sage-4.0.1
Component: modular forms | Keywords:
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Comment(by mabshoff):
Unfortunately this patch causes a massive speed regression:
{{{
sage: time EllipticCurve('858k2').sha().an_padic(Integer(7))
CPU times: user 8.90 s, sys: 0.33 s, total: 9.23 s
Wall time: 9.52 s
7^2 + O(7^3)
}}}
With both patches from this ticket this one alone takes minutes, so sorry,
but "needs work".
Cheers,
Michael
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5080#comment:9>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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