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Retain precision with double in Java
...se the BigDecimal class, if you want to have an exact representation of 11.4.
Now, a little explanation into why this is happening:
The float and double primitive types in Java are floating point numbers, where the number is stored as a binary representation of a fraction and a exponent.
More spe...
Numpy: Get random set of rows from 2D array
...> A
array([[1, 3, 0],
[3, 2, 0],
[0, 2, 1],
[1, 1, 4],
[3, 2, 2],
[0, 1, 0],
[1, 3, 1],
[0, 4, 1],
[2, 4, 2],
[3, 3, 1]])
>>> idx = np.random.randint(10, size=2)
>>> idx
array([7, 6])
>>> A[idx,:]
array([[0,...
Legality of COW std::string implementation in C++11
...
It's not allowed, because as per the standard 21.4.1 p6, invalidation of iterators/references is only allowed for
— as an argument to any standard library function taking a reference
to non-const basic_string as an argument.
— Calling non-const
member funct...
Insert auto increment primary key to existing table
... |
edited Dec 16 '14 at 2:42
answered Jan 30 '12 at 21:10
...
how to get request path with express req object
...
243
After having a bit of a play myself, you should use:
console.log(req.originalUrl)
...
Why is “final” not allowed in Java 8 interface methods?
...
430
+50
This qu...
Store password in TortoiseHg
...
texnic
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answered Jan 4 '10 at 5:10
NicolásNicolás
...
Converting a JS object to an array using jQuery
...
432
var myObj = {
1: [1, 2, 3],
2: [4, 5, 6]
};
var array = $.map(myObj, function(value, ...
Python: Get relative path from comparing two absolute paths
...
174
os.path.commonprefix() and os.path.relpath() are your friends:
>>> print os.path.commo...
diff to output only the file names
... John KugelmanJohn Kugelman
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...