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      <title>RCROSS</title>
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      <div class="title_refTopic" id="xps10_pagetitle">RCROSS </div>
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      <h4 class="refClassification">Cross-Power Spectral Density and Cross-correlation Function Output Requests</h4>
      <p class="para_refTopic">Requests computation and output of cross-power spectral density and cross-correlation functions in random analysis.</p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
         <p align="center"><img align="bottom" src="graphics/casecontrol4a-rcross.gif"></p>
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      <div class="title_refCategory">Examples: </div>
      <div class="refCategoryContent"><pre class="indent">RCROSS(PHASE)=10
RCROSS(PSDF,NOPRINT,PUNCH)=20</pre></div>
      <div class="title_refCategory">Describers:</div>
      <div class="refCategoryContent">
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                     <p class="para_th"><b class="uiTerm">Describer </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Meaning </b></p>
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                     <p class="para_td">REAL or IMAG</p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests rectangular format (real and imaginary) of complex output (for cross-power spectral density function). Use of either REAL or IMAG yields the same output. (Default)</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PHASE</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests polar format (magnitude and phase) of complex output (for cross-power spectral density function). Phase output is in degrees.</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PRINT</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Writes output to print file. (Default)</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">NOPRINT</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Does not write output to the print file.</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PUNCH</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Writes output to punch file.</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PSDF</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests the cross-power spectral density function be calculated and output for random analysis post-processing. (Default)</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">CORF</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests the cross-correlation function be calculated and output for random analysis post-processing.</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">RALL</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests both the cross-power spectral density and cross-correlation function be calculated and output for random analysis post-processing.</p>
                  </td>
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                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">n</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of RCROSS bulk data entry to be used in random analysis. (Integer &gt; 0)</p>
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         </table><br></div>
      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">The case control RCROSS entry must be used in conjuction with the case control RANDOM entry. See remarks under the RANDOM case control entry.</p>
            </li>
            <li>
               <p class="para_item">Response quantities, such as DISPLACEMENT, STRESS, and FORCE, must be requested by corresponding case control entries in order to compute cross-power spectral density and cross-correlation functions between the two response quantities specified by the RCROSS bulk data entry. It is recommended that the DISPLACEMENT, STRESS, and FORCE requests be put above the subcase level to ensure that these response quantities exist when the random analysis post-processing occurs.</p>
            </li>
            <li>
               <p class="para_item">The response quantities must belong to the same superelement. The cross-power spectral density and cross-correlation functions between two responses that belong to different superelements are not supported.</p>
            </li>
         </ol>
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