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How do I determine whether my calculation of pi is accurate?
...rong in either computation, the final results won't match - so you know at least one of them is wrong.
– Mysticial
Jan 11 '13 at 17:55
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...le all the other methods work, the currently accepted answer is by far the least performant for the provided example. Furthermore, while the groupby method is only slightly less performant, I find the duplicated method to be more readable.
Using the sample data provided:
>>> %timeit df3.res...
Unicode equivalents for \w and \b in Java regular expressions?
...f the file, or even of a line. So they’ve eXtended it to always match at least one character. It always did, but now it makes the above pattern work. […continued…]
– tchrist
Nov 30 '10 at 0:46
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What is the purpose of using -pedantic in GCC/G++ compiler?
... the following 5.1.1.3p1:
A conforming implementation shall produce at least one diagnostic message (identified in an implementation-defined manner) if a preprocessing translation unit or translation unit contains a violation of any syntax rule or constraint, even if the behavior is also explici...
UTF-8, UTF-16, and UTF-32
... is a common and obvious choice. In almost all cases, it will also use the least memory. On the other hand, you can't make any guarantees about the width of a character. It may be 1, 2, 3 or 4 characters wide, which makes string manipulation difficult.
UTF-32 is opposite, it uses the most memory (e...
Mercurial for Beginners: The Definitive Practical Guide
...inally, with a Windows version available just recently. Pretty nice UI (at least on OS X), supports majority of Hg features, including shelve.
Plugins
VisualHG for Visual Studio
HgSccPackage for Visual Studio 2008/2010
MercurialEclipse for Eclipse
Mercurial support for NetBeans
Mercurial support...
How can I replace a newline (\n) using sed?
...mand to add the Next line to the pattern space;
(2) use the 'H' command at least twice to append the current line
to the Hold space, and then retrieve the lines from the hold space
with x, g, or G; or (3) use address ranges (see section 3.3, above)
to match lines between two specified addresses.
Cho...
Is there a regular expression to detect a valid regular expression?
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regex by def should not have recursion, at least say something like that in ur answer, ur regex engine is probably "too powerful" and not really a regex engine.
– Charlie Parker
Jun 11 '17 at 0:34
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
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Whoa-- this is terrifying. At least the first "rm" isn't a "rm -rf", which, if there's a blank line on the outpur of sbom, would remove all of /usr/local. Before doing anything so heavyhanded, scrutinize the sbom output and where all these dirs came from ...
Overloading Macro on Number of Arguments
... Note that on C++11, you'll get a warning: ISO C++11 requires at least one argument for the "..." in a variadic macro. To fix this, add an unused argument (or even just a comma) after the last param in the definition of FOO(...): #define FOO(...) GET_MACRO(__VA_ARGS__, FOO3, FOO2, UNUSED)(...