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    <h1>calculations.rb</h1>
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      <td><strong>Path:</strong></td>
      <td>/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta4/lib/active_support/core_ext/time/calculations.rb
      </td>
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      <td><strong>Last Update:</strong></td>
      <td>Sun Jun 20 17:19:12 -0600 2010</td>
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      <h3 class="section-bar">Required files</h3>

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      active_support/duration&nbsp;&nbsp;
      active_support/core_ext/date/acts_like&nbsp;&nbsp;
      active_support/core_ext/date/calculations&nbsp;&nbsp;
      active_support/core_ext/date_time/conversions&nbsp;&nbsp;
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