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      <title>Parameters and Expressions</title>
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      <div class="title_topic2" id="xps10_pagetitle">Parameters and Expressions</div>
      <hr noshade="true"><a name="ndxgenid_roadmap381"></a><a name="ndxgenid_roadmap382"></a><a name="ndxgenid_roadmap383"></a><p class="para_topic"><img align="bottom" src="graphics/commandref/ideas_rule.gif" border="0"></p>
      <p class="para_topic">In I-deas, simple equations can be entered when dimensions are created, such as matching one dimension to half the value of another dimension.</p>
      <p class="para_topic">More complicated equations including conditional expressions can be entered using part equations.</p>
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      <p class="para_topic">In NX, you can create equations the same way when creating dimensions. All expressions and variables in the .prt file are shown in the <b class="uiTerm">Expressions</b> dialog box.
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