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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...ransposing a matrix of size 2^n is slower than transposing one of size 2^n+1 . For small values of n , the difference is not major.
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How to optimize imports automatically after each save in IntelliJ IDEA
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IntelliJ IDEA offers an option to Optimize imports on the fly in Settings | Editor | General |...
Convert SQLITE SQL dump file to POSTGRESQL
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You should be able to feed that dump file straight into psql:
/path/to/psql -d database -U use...
What's the difference between `on` and `live` or `bind`?
In jQuery v1.7 a new method, on was added. From the documentation:
7 Answers
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What is the difference between Fragment and FragmentActivity?
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A Fragment is a section of an Activity, which has:
its own lifecycle
receives its own input ev...
C++0x lambda capture by value always const?
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Use mutable.
auto bar = [=] () mutable -> bool ....
Without mutable you are declaring t...
nginx upload client_max_body_size issue
...s I want uploaded.
To do that, I set the nginx client_max_body_size to 1m (1MB) and expect a HTTP 413 (Request Entity Too Large) status in response when that rule breaks.
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Toggle input disabled attribute using jQuery
...perty. There are two arguments passed; the first argument is the index (0, 1, 2, increases for each found element). The second argument is the current value of the element (true/false).
So in this case, I used a function that supplied me the index (i) and the current value (v), then I returned th...
What are the big improvements between guava and apache equivalent libraries?
... "modern"
Apache Commons is a really mature library, but it's also almost 10 years old, and targets Java 1.4. Guava was open sourced in 2007, targets Java 5, and thus Guava greatly benefits from the Java 5 features: generics, varargs, enums, and autoboxing.
According to the Guava developers, gener...