大约有 43,100 项符合查询结果（耗时：0.0442秒） [XML]
how does multiplication differ for NumPy Matrix vs Array classes?
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The main reason to avoid using the matrix class is that a) it's inherently 2-dimensional, and ...
Is there a standard sign function (signum, sgn) in C/C++?
I want a function that returns -1 for negative numbers and +1 for positive numbers.
http://en.wikipedia.org/wiki/Sign_function
It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere.
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How do you reindex an array in PHP?
...hich I would like to reindex so the keys are reversed (ideally starting at 1):
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Return multiple values in JavaScript?
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No, but you could return an array containing your values:
function getValues() {
return ...
How to go about formatting 1200 to 1.2k in java
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+100
Here i...
Android dex gives a BufferOverflowException when building
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JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I am getting error Expecting value: line 1 column 1 (char 0) when trying to decode JSON.
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What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?
...e database server sorts (compares pieces of text). in this case:
SQL_Latin1_General_CP1_CI_AS
breaks up into interesting parts:
latin1 makes the server treat strings using charset latin 1, basically ascii
CP1 stands for Code Page 1252
CI case insensitive comparisons so 'ABC' would equal 'abc'
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SQLite - UPSERT *not* INSERT or REPLACE
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