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Why does Math.round(0.49999999999999994) return 1?
... precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
The problem
0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(double d) {
System.out.printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[...
Convert a 1D array to a 2D array in numpy
... specifying the number of columns in the 2D array. Something that would work like this:
8 Answers
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How do I download a file over HTTP using Python?
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CoreyCorey
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What is a StackOverflowError?
What is a StackOverflowError , what causes it, and how should I deal with them?
15 Answers
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How do I split a string, breaking at a particular character?
...prototype.split function:
var input = 'john smith~123 Street~Apt 4~New York~NY~12345';
var fields = input.split('~');
var name = fields[0];
var street = fields[1];
// etc.
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How to generate .json file with PHP?
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Yangshun Tay
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answered Mar 18 '10 at 6:45
Alec SmartAlec Sm...
How to ignore certain files in Git
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The problem is that .gitignore ignores just files that weren't tracked before (by git add). Run git reset name_of_file to unstage the file and keep it. In case you want to also remove the given file from the repository (after pushing), use git rm --cached name_of_file.
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Can't find the 'libpq-fe.h header when trying to install pg gem
I am using the Ruby on Rails 3.1 pre version. I like to use PostgreSQL, but the problem is installing the pg gem. It gives me the following error:
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Using Sinatra for larger projects via multiple files
... when let's say somebody calls "/" - one action is executed, and if smth like "/posts/2" is received then another action - similar logic that is applied in PHP?
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New line in JavaScript alert box
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Michael GattusoMichael Gattuso
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