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How can the Euclidean distance be calculated with NumPy?
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931
Use numpy.linalg.norm:
dist = numpy.linalg.norm(a-b)
You can find the theory behind this in I...
How to find out which JavaScript events fired?
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147
Just thought I'd add that you can do this in Chrome as well:
Ctrl + Shift + I (Developer Tool...
Min/Max-value validators in asp.net mvc
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answered Aug 31 '11 at 12:22
Charles OuelletCharles Ouellet
5,60333 gold badges3636 silver badges5353 bronze badges
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How can I check if a URL exists via PHP?
...ders = @get_headers($file);
if(!$file_headers || $file_headers[0] == 'HTTP/1.1 404 Not Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above post, there's a curl solution:
function url_exists($url) {
return curl_init($url) !== false;
}
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Assert an object is a specific type
... object in my test that I want to check the type of. Is it a type of Object1 or a type of Object2?
4 Answers
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Is there any way to not return something using CoffeeScript?
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150
You have to explicitly return nothing, or to leave an expression evaluating to undefined at th...
How to write a cron that will run a script every day at midnight?
...mm hh dd mt wd command
mm minute 0-59
hh hour 0-23
dd day of month 1-31
mt month 1-12
wd day of week 0-7 (Sunday = 0 or 7)
command: what you want to run
all numeric values can be replaced by * which means all
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Is floating-point math consistent in C#? Can it be?
No, this is not another "Why is (1/3.0)*3 != 1" question.
10 Answers
10
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Ignore modified (but not committed) files in git?
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edited Feb 27 '12 at 14:49
IcanDivideBy0
1,48399 silver badges1616 bronze badges
answered Apr...