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Undefined reference to `sin` [duplicate]

I have the following code (stripped down to the bare basics for this question): 4 Answers ...
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How to make an immutable object in Python?

Although I have never needed this, it just struck me that making an immutable object in Python could be slightly tricky. You can't just override __setattr__ , because then you can't even set attributes in the __init__ . Subclassing a tuple is a trick that works: ...
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Fast permutation -> number -> permutation mapping algorithms

I have n elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements. ...
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How to move screen without moving cursor in Vim?

I recently discovered Ctrl + E and Ctrl + Y shortcuts for Vim that respectively move the screen up and down with a one line step, without moving the cursor . ...
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How to make a class JSON serializable

How to make a Python class serializable? 33 Answers 33 ...
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SSL Error: unable to get local issuer certificate

I'm having trouble configuring SSL on a Debian 6.0 32bit server. I'm relatively new with SSL so please bear with me. I'm including as much information as I can. Note: The true domain name has been changed to protect the identity and integrity of the server. ...
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When should I use cross apply over inner join?

What is the main purpose of using CROSS APPLY ? 13 Answers 13 ...
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Timeout jQuery effects

I am trying to have an element fade in, then in 5000 ms fade back out again. I know I can do something like: 7 Answers ...
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How to paste in a new line with vim?

I often have to paste some stuff on a new line in vim. What I usually do is: 14 Answers ...
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Printing Java Collections Nicely (toString Doesn't Return Pretty Output)

I wish to print a Stack<Integer> object as nicely as the Eclipse debugger does (i.e. [1,2,3...] ) but printing it with out = "output:" + stack doesn't return this nice result. ...