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Performance of Java matrix math libraries? [closed]
... SSE instructions, but only one per operation); accesses to elements of an array are compiled to use "raw" MOV instructions as you'd expect; it makes decisions on how to allocate variables to registers when it can; it re-orders instructions to take advantage of processor architecture... A possible e...
Performing regex Queries with pymongo
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If you need to match agains an array using $in then $regex would not work for you. bson.regex.Regex will do the trick!
– odedfos
Jul 4 '18 at 13:27
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Is there a built in function for string natural sort?
... strings will always be on even indexes and integers on odd indexes in the array.
– Florian Kusche
Oct 30 '17 at 9:13
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Access to Modified Closure
...";
closure.files[1] = "bar";
closure.files[2] = "notbaz";
var arrayToSearch = new string[] { "foo", "bar", "baz" };
//this works, because the predicates are being executed during the loop
for (closure.i = 0; closure.i < closure.files.Length; closure.i++)
{
if (Ar...
What's the difference between deque and list STL containers?
... me list down the differences:
Deque manages its elements with a
dynamic array, provides random
access, and has almost the same
interface as a vector.
List manages its elements as a
doubly linked list and does not
provide random access.
Deque provides Fast insertions and deletions at
both the...
How does one make an optional closure in swift?
...es to properly scope the ? operator. As an example, to declare an optional array of integers, write the type annotation as (Int[])?; writing Int[]? produces an error.”
– Cezar
Jun 24 '14 at 20:59
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Using Rails serialize to save hash to database
...sh of comparative size, this would easily exceed the length. Same case for Arrays. Text allows for much bigger lengths.
– Benjamin Tan Wei Hao
Apr 19 '12 at 6:08
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Performance - Date.now() vs Date.getTime()
...ll be about 2x slower than Date.now()
The same principle should apply for Array.prototype.slice.call(arguments, 0) vs [].slice.call(arguments, 0)
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How to check if element exists using a lambda expression?
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@MalteHartwig tested in a 10kk ArrayList with a simple object trying to find the last element. gives a 2ms difference 131ms against 133ms for your. on a 1kk array list yours if faster by 2ms (55ms to 53ms). So we can say that yours is better :)
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Python int to binary string?
...a node in a linked list? For any typical language a string is basically an array of chars. In that case prefixing a string requires that a copy is made, how else are you going to put the character before the other characters?
– Andreas Magnusson
Jan 9 at 13:28
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