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How does the C# compiler detect COM types?

...peech API, where you're able to "instantiate" the interface SpVoice (but really, you're instantiating SPVoiceClass). [CoClass(typeof(SpVoiceClass))] public interface SpVoice : ISpeechVoice, _ISpeechVoiceEvents_Event { } sh...
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How does C compute sin() and other math functions?

...on in C, contributed by IBM. Since October 2011, this is the code that actually runs when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x). This code is very complex. N...
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Rename multiple files in a directory in Python [duplicate]

...e script itself. Instead of using . as the dir, you could make a variable called dir and use that, then prepend dir to the filename. – styfle May 18 '11 at 5:53 18 ...
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How to set JAVA_HOME in Linux for all users

... For all users, I would recommend placing the following line in /etc/profile export JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::") This will update dynamically and works well with the alternatives system. Do not...
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Setting up two different static directories in node.js Express framework

...nal (first) parameter to use() like so: app.use("/public", express.static(__dirname + "/public")); app.use("/public2", express.static(__dirname + "/public2")); That way you get two different directories on the web that mirror your local directories, not one url path that fails over between two lo...
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Extract month and year from a zoo::yearmon object

... Ha thank you for this answer. It especially beats the other solutions when you want to do something like if(year(date1) > 2014){year(date1) <- year(date1) - 100} – Vincent Feb 10 '14 at 9:34 ...
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Unexpected results when working with very big integers on interpreted languages

...em will work in this case, since Python switches to long integers automatically if needed. And if that's not enough, it will switch to big integers as well. – Alok Singhal Aug 4 '13 at 19:37 ...
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What is the fastest way to compute sin and cos together?

.... If you need strong optimization, perhaps you should use it. Here is a small example: http://home.broadpark.no/~alein/fsincos.html Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669 Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...
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How do I integrate Ajax with Django applications?

...ction, going to 127.0.0.1:8000/home will return the index.html and replace all the variables as asked (you probably know all this by now). Now let's talk about AJAX. AJAX calls are client-side code that does asynchronous requests. That sounds complicated, but it simply means it does a request for y...
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Mimicking sets in JavaScript?

...the list is a little safer with this: if (Object.prototype.hasOwnProperty.call(obj, A)) // put code here } because of potential conflict between built-in methods and/or properties on the base Object like the constructor property. Sidebar on ES6: The current working version of ECMAScript 6 or s...