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	<title>jonathan ng &#187; ruby</title>
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	<description>code + culture</description>
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		<title>Using regular expressions? The Devil is in the details.</title>
		<link>http://jonathanng.com/ruby-on-rails/using-regular-expressions-the-devil-is-in-the-details/</link>
		<comments>http://jonathanng.com/ruby-on-rails/using-regular-expressions-the-devil-is-in-the-details/#comments</comments>
		<pubDate>Wed, 19 Jan 2011 08:39:39 +0000</pubDate>
		<dc:creator>Jonathan</dc:creator>
				<category><![CDATA[ruby on rails]]></category>
		<category><![CDATA[regex]]></category>
		<category><![CDATA[regular expressions]]></category>
		<category><![CDATA[ruby]]></category>

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		<description><![CDATA[Recently, I ran into a little roadblock as I&#8217;ve been cleaning up some bugs for one of my applications. I rely heavily on cross pollination of data between sites to drive traffic across my network. In this particular situation, a simple collection of linked image thumbnails accomplishes this task. One of the helper methods that [...]]]></description>
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		<title>Raise a value to a negative power in Ruby</title>
		<link>http://jonathanng.com/ruby-on-rails/raise-a-value-to-a-negative-power-in-ruby/</link>
		<comments>http://jonathanng.com/ruby-on-rails/raise-a-value-to-a-negative-power-in-ruby/#comments</comments>
		<pubDate>Thu, 21 Feb 2008 02:26:34 +0000</pubDate>
		<dc:creator>Jonathan</dc:creator>
				<category><![CDATA[ruby on rails]]></category>
		<category><![CDATA[ruby]]></category>

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		<description><![CDATA[I ran into a few kinks trying to raise some numbers to a negative power in Ruby. Ruby uses the ** operator for exponential calculations. Here&#8217;s the little hiccup I encountered: # 2^2 = 4 # here is the IRB dump &#62;&#62; 2**-2 =&#62; Rational&#40;1, 4&#41; # but I don't want the actual number! &#62;&#62; [...]]]></description>
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