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plot a circle with pyplot

... 205 You need to add it to an axes. A Circle is a subclass of an Artist, and an axes has an add_arti...
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The modulo operation on negative numbers in Python

...nually fix it up by adding 7: int result = (2 - N) % 7; return result < 0 ? result + 7 : result; (See http://en.wikipedia.org/wiki/Modulo_operator for how the sign of result is determined for different languages.) share ...
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How to validate an email address in PHP

... 10 Answers 10 Active ...
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Is there an equivalent of 'which' on the Windows command line?

... Windows Server 2003 and later (i.e. anything after Windows XP 32 bit) provide the where.exe program which does some of what which does, though it matches all types of files, not just executable commands. (It does not match built-in shell co...
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Finding duplicates in O(n) time and O(1) space

Input: Given an array of n elements which contains elements from 0 to n-1, with any of these numbers appearing any number of times. ...
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Generate array of all letters and digits

...g ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily? 7 Answers ...
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Check if UIColor is dark or bright?

...o use is ((Red value * 299) + (Green value * 587) + (Blue value * 114)) / 1000. share | improve this answer | follow | ...
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How to change navbar collapse threshold using Twitter bootstrap-responsive?

I'm using Twitter Bootstrap 2.0.1 in a Rails 3.1.2 project, implemented with bootstrap-sass. I'm loading both the bootstrap.css and the bootstrap-responsive.css files, as well as the bootstrap-collapse.js Javascript. ...
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Getting current date and time in JavaScript

... 600 .getMonth() returns a zero-based number so to get the correct month you need to add 1, so calli...
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Installing specific package versions with pip

...s here: http://pypi.python.org/pypi/MySQL-python/1.2.2 The download link 404s and the fallback URL links are re-directing infinitely due to sourceforge.net's recent upgrade and PyPI's stale URL. So to properly install the driver, you can follow these steps: pip uninstall MySQL_python pip install ...