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Which is faster in Python: x**.5 or math.sqrt(x)?
I've been wondering this for some time. As the title say, which is faster, the actual function or simply raising to the half power?
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How can I declare and use Boolean variables in a shell script?
...o the original answer, and many of the comments are wrong when associated with the revised answer. For example, Dennis Williamson's comment about bash builtin true on Jun 2, 2010 only applies to the original answer, not the revised.
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How to read a large file - line by line?
I want to iterate over each line of an entire file. One way to do this is by reading the entire file, saving it to a list, then going over the line of interest. This method uses a lot of memory, so I am looking for an alternative.
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Where does Visual Studio look for C++ header files?
...cation from SourceForge (HoboCopy, if you're curious) and tried to compile it.
6 Answers
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How to convert a SVG to a PNG with ImageMagick?
...defined size of 16x16. When I use ImageMagick's convert program to convert it into a PNG, then I get a 16x16 pixel PNG which is way too small:
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Common use-cases for pickle in Python
...that I have come across:
1) saving a program's state data to disk so that it can carry on where it left off when restarted (persistence)
2) sending python data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbit...
How do you do a deep copy of an object in .NET? [duplicate]
I want a true deep copy. In Java, this was easy, but how do you do it in C#?
11 Answers
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Linux equivalent of the Mac OS X “open” command [closed]
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You could try xdg-open, most Linux distros have it. It will open default associated app for your file.
FYI https://portland.freedesktop.org/doc/xdg-open.html
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Case conventions on element names?
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Most XML standards originating from the W3C tend to use lower case with hyphens.
There is a philosophical distinction between seeing XML as a format for platform neutral documents, which W3C standards try to encourage, and languages such as XAML which see XML as a serialisation of a platform...
Space between two rows in a table?
...ng is only applied to td elements that are direct children to tr elements with the class spaceUnder. This will make it possible to use nested tables. (Cell C and D in the example code.) I'm not too sure about browser support for the direct child selector (think IE 6), but it shouldn't break the code...