#5715: [with patch; needs work] show subdivisions for matrices over GF(2)
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Reporter: jhpalmieri | Owner: jhpalmieri
Type: defect | Status: closed
Priority: minor | Milestone: sage-3.4.2
Component: linear algebra | Resolution: duplicate
Keywords: |
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Comment(by was):
Needs work. There is a *very good* reason that there is a str method for
GF(2) -- it's for speed! Check this out:
{{{
BEFORE YOUR PATCH:
sage: a = random_matrix(GF(2),1000)
sage: time b = a.str()
CPU times: user 0.41 s, sys: 0.01 s, total: 0.42 s
Wall time: 0.42 s
}}}
{{{
AFTER YOUR PATCH:
sage: a = random_matrix(GF(2),1000)
sage: time b = a.str()
CPU times: user 5.02 s, sys: 0.86 s, total: 5.88 s
Wall time: 5.89 s
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5715#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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