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Difference between Python's Generators and Iterators

What is the difference between iterators and generators? Some examples for when you would use each case would be helpful. 1...
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Git Alias - Multiple Commands and Parameters

I am trying to create an alias that uses both multiple Git commands and positional parameters. There are Stackoverflow pages for each, and it would appear painfully obvious to do both, but I am having trouble. ...
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What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?

Why were 181783497276652981 and 8682522807148012 chosen in Random.java ? 3 Answers ...
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How to find where a method is defined at runtime?

...d occurred, a backend process failed to run. Now, we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in production mode. ...
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How to use glOrtho() in OpenGL?

I can't understand the usage of glOrtho . Can someone explain what it is used for? 3 Answers ...
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Python timedelta in years

...een since some date. Currently I've got timedelta from datetime module and I don't know how to convert it to years. 16 ...
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When to use LinkedList over ArrayList in Java?

...nkedList. If you're not sure — just start with ArrayList. LinkedList and ArrayList are two different implementations of the List interface. LinkedList implements it with a doubly-linked list. ArrayList implements it with a dynamically re-sizing array. As with standard linked list and array op...
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Validate decimal numbers in JavaScript - IsNumeric()

...ring this set of +30 unit tests made to numerous function implementations, and also share the one that passes all my tests: function isNumeric(n) { return !isNaN(parseFloat(n)) && isFinite(n); } P.S. isNaN & isFinite have a confusing behavior due to forced conversion to number. In...
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How does C compute sin() and other math functions?

I've been poring through .NET disassemblies and the GCC source code, but can't seem to find anywhere the actual implementation of sin() and other math functions... they always seem to be referencing something else. ...
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Why is 1/1/1970 the “epoch time”?

...DC, but it was probably cheap to use whatever was most common at the time, and TVs were being mass-produced then... – Matt Howells Jul 7 '09 at 10:32 18 ...