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How does the HyperLogLog algorithm work?
...dom integers, see an integer which binary representation starts with some known prefix, there is a higher chance that the cardinality of the stream is 2^(size of the prefix).
That is, in a random stream of integers, ~50% of the numbers (in binary) starts with "1", 25% starts with "01", 12,5% starts...
What are the mathematical/computational principles behind this game?
...o lines meet in exactly one point (this is a bit different from Euclid).
Now, add "finite" into the soup and you have the question:
Can we have a geometry with just 2 points? With 3 points? With 4? With 7?
There are still open questions regarding this problem but we do know this:
If there are ...
Message Queue vs. Web Services? [closed]
...gives a response to the call and the client fails, if the client didn't acknowledge the response the message is persisted.
You have contention, you can decide how many requests are handled by the server (call it worker instead).
You don't expect an immediate synchronous response, but you can impleme...
Format XML string to print friendly XML string
...Check the following link: How to pretty-print XML (Unfortunately, the link now returns 404 :()
The method in the link takes an XML string as an argument and returns a well-formed (indented) XML string.
I just copied the sample code from the link to make this answer more comprehensive and convenie...
How to fetch FetchType.LAZY associations with JPA and Hibernate in a Spring Controller
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I now asked for an example to Jose's answer, have to admit I don't understand entirely.
– Matsemann
Mar 12 '13 at 19:51
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In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...ent question since I'm just saying that the code posted in the question is now working since Django 1.10. Note that according to the link he posted about what he wanted to use, he has forgotten to make the Place class abstract.
– qmarlats
Jan 28 '17 at 15:50
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What are Vertex Array Objects?
...; //vertf buf is a floatbuffer of vertices
At this point OpenGL Sees:
Now we can use glVertexAttribPointer to tell OpenGL what the data in the buffer represents:
glBindBuffer(GL_ARRAY_BUFFER, 0); //bind VBO at 0
glVertexAttribPointer(0, 3, GL_FLOAT, false, 0, 0); //each vertex has 3 components...
What exactly is an Assembly in C# or .NET?
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@rax: done; @pratik: now you're confusing me: you talk about "multi-file assembly" again, while @GregD mentioned it really was a "multi-assembly file" - what is it now?? (as I said - I've never encountered such a beast, so I'm a bit unclear wheth...
jQuery - Get Width of Element when Not Visible (Display: None)
...ns and also returns the offset values.
/edit1: rewrote the function. it's now smaller and can be called directly on the object
/edit2: the function will now insert the clone just after the original element instead of the body, making it possible for the clone to maintain inherited dimensions.
$.f...
Is it possible to set UIView border properties from interface builder?
...ou can set some properties of a view's layer through interface builder. I know that I can set a layer's borderWidth and cornerRadius through xcode. borderColor doesn't work, probably because the layer wants a CGColor instead of a UIColor.
You might have to use Strings instead of numbers, but it wor...