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Jul
24
revised How to parallelize a Do loop containing URLFetchAsynchronous?
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Jul
24
comment How to parallelize a Do loop containing URLFetchAsynchronous?
@Pickett: Oops, should have viewed the output LOL. Thanks, let me fix that.
Jul
24
answered How to parallelize a Do loop containing URLFetchAsynchronous?
Jul
24
comment How to parallelize a Do loop containing URLFetchAsynchronous?
What is FailedQ? Note that Reap and Sow are far more efficient at list accumulation problems than AppendTo, since AppendTo's performance degrades as the list gets larger (I think).
Jul
12
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Jul
12
comment Huge matrices crashes in Mathematica
That matrix would take up 78GB of RAM if it were a PackedArray. If it wasn't, it'd need hundreds of GB of RAM. 32GB RAM isn't enough. I think Leonid Shifrin had a big-array package, but I've never used it.
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Jul
5
revised How to sort colors properly?
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Jul
5
answered How to sort colors properly?
Jul
5
comment How to sort colors properly?
Interesting. That reduces it to a traveling salesman problem, where the distance metric is CIELAB, rather than Euclidean. I'll see what I can do.
Jul
5
comment How to sort colors properly?
Both your solutions are right. The dark and light bands are to be expected. The first sorts by hue, regardless of brightness, and it does exactly that; the brightness is not taken into account in the sort. The same happens for your a* sort.
Jun
28
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