#5402: Sparse determinants are slow
----------------------------+-----------------------------------------------
Reporter: jbandlow | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.4.2
Component: linear algebra | Keywords: determinant
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The following timings should be able to be improved.
{{{
sage: dd = {(0,0):1}
sage: %timeit matrix(8,dd).det()
10 loops, best of 3: 213 ms per loop
sage: %timeit matrix(8,dd,sparse = False).det()
100 loops, best of 3: 629 µs per loop
}}}
William suggested:
Likely the fix will be to implement
a 1-line function that is just
{{{
return self.dense_matrix().det(*args, **kwds)
}}}
until there is somebody who wants to implement a sparse algorithm.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5402>
Sage <http://sagemath.org/>
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