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Performance of Java matrix math libraries? [closed]
.... I've compared some of these libraries. I attempted to matrix multiply a 3000 by 3000 matrix of doubles with itself. The results are as follows.
Using multithreaded ATLAS with C/C++, Octave, Python and R, the time taken was around 4 seconds.
Using Jama with Java, the time taken was 50 seconds.
U...
How to declare or mark a Java method as deprecated?
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Clijsters
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answered Jan 27 '12 at 10:24
Vladimir IvanovVladi...
Hashset vs Treeset
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answered Dec 16 '10 at 18:59
sactiwsactiw
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How to check if a variable is set in Bash?
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answered Dec 13 '12 at 17:04
LionelLionel
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Java: how do I get a class literal from a generic type?
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Karthik
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answered Mar 5 '10 at 23:39
cletuscletus
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How do you implement a Stack and a Queue in JavaScript?
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edited Jan 30 '15 at 6:10
piecioshka
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Saving and loading objects and using pickle
...wind the file so that it will be read from the beginning again:
file.seek(0)
What you usually want to do though, is to use a context manager to open the file and read data from it. This way, the file will be automatically closed after the block finishes executing, which will also help you organiz...
What is code coverage and how do YOU measure it?
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answered Oct 12 '08 at 2:54
Franci PenovFranci Penov
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SQL update fields of one table from fields of another one
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answered May 4 '10 at 15:41
Scott BaileyScott Bailey
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What are the lesser known but useful data structures?
...ries, also known as prefix-trees or crit-bit trees, have existed for over 40 years but are still relatively unknown. A very cool use of tries is described in "TRASH - A dynamic LC-trie and hash data structure", which combines a trie with a hash function.
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