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      <title>Case 1</title>
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      <div class="title_topic4" id="xps10_pagetitle">Case 1</div>
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      <p class="para_topic"> This illustrates the case where the dimensionality of a system-generated expression is not known. In this example, the program tries to convert parta.prt from inches to millimeters. The expression  <em>p2</em> references an expression in another part. The program treats inter-part expressions as unknown dimensionality.
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      <p class="para_topic"> List of expressions (from parta.prt):</p><pre class="indent"> p1=5.0</pre><p class="para_topic"> List of expressions (from partb.prt):</p><pre class="indent"> p0=10.0 p2=p0+parta::p</pre><p class="para_topic"> output.exp_txt (exported annotated text using-x option):</p><pre class="indent"> p0=254.0 // dim 1 p2=381.0 // p0+parta::p1 // dim 1</pre></body>
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