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$\begingroup$ Most of zeros is exactly my situation - so, thanks, very useful tip. $\endgroup$

Vitaliy Kaurov
– Vitaliy Kaurov

2012-01-27 04:26:04 +00:00
Commented Jan 27, 2012 at 4:26
$\begingroup$ @Vitaliy Glad I could help. I've figured this out quite recently b.t.w., when having some similar problem. One probably could build a version of SparseArrays where binary search trees or hash tables would be used to store no-zero positions and elements, which would be better in this case. It would, however, be a lot of work tointegrate those as well into Mathematica as the current SparseArray-s are. $\endgroup$

Leonid Shifrin
– Leonid Shifrin

2012-01-27 09:09:17 +00:00
Commented Jan 27, 2012 at 9:09

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