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Applicatives compose, monads don't
What does the above statement mean? And when is one preferable to other?
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What is Java Servlet?
I read many articles to understand java servlet but I did not succeed.
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What is the copy-and-swap idiom?
What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used?
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Why can't Python's raw string literals end with a single backslash?
Technically, any odd number of backslashes, as described in the documentation .
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Why are side-effects modeled as monads in Haskell?
Could anyone give some pointers on why the impure computations in Haskell are modelled as monads?
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Generate a random point within a circle (uniformly)
I need to generate a uniformly random point within a circle of radius R .
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When to use static classes in C# [duplicate]
Here's what MSDN has to say under When to Use Static Classes :
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When is a function too long? [closed]
35 lines, 55 lines, 100 lines, 300 lines? When you should start to break it apart? I'm asking because I have a function with 60 lines (including comments) and was thinking about breaking it apart.
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How does a public key verify a signature?
I am trying to get a better grapple on how public/private keys work. I understand that a sender may add a digital signature to a document using his/her private key to essentially obtain a hash of the document, but what I do not understand is how the public key can be used to verify that signature.
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What is the difference between HTML tags and ?
I would like to ask for some simple examples showing the uses of <div> and <span> . I've seen them both used to mark a section of a page with an id or class , but I'm interested in knowing if there are times when one is preferred over the other.
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