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Should I use scipy.pi, numpy.pi, or math.pi?

...gt;> math.pi == np.pi == scipy.pi True So it doesn't matter, they are all the same value. The only reason all three modules provide a pi value is so if you are using just one of the three modules, you can conveniently have access to pi without having to import another module. They're not provi...
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What is Virtual DOM?

Recently, I looked at Facebook's React framework. It uses a concept called "the Virtual DOM," which I didn't really understand. ...
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Where is virtualenvwrapper.sh after pip install?

I'm trying to setup virtualenvwrapper on OSX, and all the instructions and tutorials I've found tell me to add a source command to .profile, pointing towards virtualenvwrapper.sh. I've checked all the python and site-packages directories, and I can't find any virtualenvwrapper.sh. Is this something ...
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Remove empty lines in text using Visual Studio

... ^\s+$\n changed to ^\s*$\n allow for (no content) pure line feeds. – Joe Johnston Jan 6 '15 at 16:15 4 ...
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Revert to a commit by a SHA hash in Git? [duplicate]

...ample, I want to revert to a commit six commits behind the head, reverting all the changes in the intermediary commits in between. ...
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Cross cutting concern example

...ently used in distributed applications to aid debugging by tracing method calls. Suppose we do logging at both the beginning and the end of each function body. This will result in crosscutting all classes that have at least one function. (Courtesy) ...
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L

... I had the exact same problem and it was driving me crazy! Put all your hosts file entries for localhost into one line like so: 127.0.0.1 localhost myproject.dev myotherproject.dev ::1 localhost fe80::1%lo0 localhost Worked like a charm for me. Seems like a bug in Lion. ...
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How to change current Theme at runtime in Android [duplicate]

I've created a PreferenceActivity that allows the user to choose the theme he wants to apply to the entire application. 13 ...
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Performance differences between debug and release builds

I must admit, that usually I haven't bothered switching between the Debug and Release configurations in my program, and I have usually opted to go for the Debug configuration, even when the programs are actually deployed at the customers place. ...
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Django development IDE [closed]

I have done a little Django development, but it has all been in a text editor. I was curious what more advanced development tools others are using in their Django development. ...