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How to use the PI constant in C++
..._PI 3.14159265358979323846 /* pi */
but check your math.h for more. An extract from the "old" math.h (in 2009):
/* Define _USE_MATH_DEFINES before including math.h to expose these macro
* definitions for common math constants. These are placed under an #ifdef
* since these commonly-...
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
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Using R to download zipped data file, extract, and import data
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Zip archives are actually more a 'filesystem' with content metadata etc. See help(unzip) for details. So to do what you sketch out above you need to
Create a temp. file name (eg tempfile())
Use download.file() to fetch the file into the temp. file...
How to run mvim (MacVim) from Terminal?
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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...an be achieved by three different approaches (see my blog article here for more details):
Search in Elements panel like below
Execute $x() and $$() in Console panel, as shown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how...
How can I implement prepend and append with regular JavaScript?
... newChild is added at the end of the list of
children. Equivalently, and more readably, use
parentNode.appendChild(newChild).
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Exif manipulation library for python [closed]
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No PIL for Python 3.x
– More Than Five
Jul 8 '13 at 9:24
Nice overview. Just a note: exif...
How to use pip with Python 3.x alongside Python 2.x
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Best way to create a simple python web service [closed]
...o get something up? If it affects your suggestion, I will likely be adding more functionality to this, down the road.
9 Ans...
String variable interpolation Java [duplicate]
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@MiaeKim: Then I think it should be more closely scoped. "For pieces of code where performance is critical" is more helpful than "If you care about performance" IMO. Who's going to say they, as a developer, don't care about performance? It's a matter of judging...