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What's the difference between a single precision and double precision floating point operation?

..., cache, and bandwidth, thereby reducing the overall system performance. From Webopedia: The term double precision is something of a misnomer because the precision is not really double. The word double derives from the fact that a double-precision number uses twice as many bits as a regular ...
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How do I calculate percentiles with python/numpy?

...ues. Note N MUST BE already sorted. @parameter percent - a float value from 0.0 to 1.0. @parameter key - optional key function to compute value from each element of N. @return - the percentile of the values """ if not N: return None k = (len(N)-1) * percent f = m...
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How do you rename a MongoDB database?

... How is this different from the solution provided by the OP? – Salvador Dali Apr 3 '14 at 3:26 6 ...
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How can I safely create a nested directory?

... On Python ≥ 3.5, use pathlib.Path.mkdir: from pathlib import Path Path("/my/directory").mkdir(parents=True, exist_ok=True) For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it: Try os.path.exist...
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What is an optional value in Swift?

From Apple's documentation : 13 Answers 13 ...
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Why does an SSH remote command get fewer environment variables then when run manually? [closed]

...hell is either a login shell or an interactive shell. Description follows, from man bash: A login shell is one whose first character of argument zero is a -, or one started with the --login option. An interactive shell is one started without non-option argument...
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X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode

...ttpProtocol> </system.webServer> Edit: I removed the clear code from just before the add; it was an unnecessary oversight from copying and pasting. Good catch, commenters! share | improv...
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How do I get the path and name of the file that is currently executing?

... this is weird: when running from command line "__file__" in quotes (as string) gives the dir from which cmd is run, but __file__ (without quotes gives the path to the source file ... why is that – muon May 9 '18...
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How to get the current working directory in Java?

...getProperty("user.dir")); } } This will print a complete absolute path from where your application was initialized. From the documentation: java.io package resolve relative pathnames using current user directory. The current directory is represented as system property, that is, user.dir and ...
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How do I migrate an SVN repository with history to a new Git repository?

...very differently. You need to learn Git, and if you want to track changes from SVN upstream, you need to learn git-svn. The git-svn main page has a good examples section: $ git svn --help share | ...