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      <title>By coefficients options</title>
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      <div class="title_topic3" id="xps10_pagetitle">By coefficients options</div>
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                  <p class="para_td"><b class="uiTerm">Coefficients</b></p>
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                  <p class="para_td"><b class="uiTerm">Specify Method</b></p>
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                  <p class="para_td">Specifies the Cartesian or Spherical coordinate system.</p>
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                  <p class="para_td"><b class="uiTerm">I, J, K</b></p>
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                  <p class="para_td">Requests three values (Cartesian coordinates) needed to define a vector using the I, J, K rectangular coordinates.</p>
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                  <p class="para_td"><b class="uiTerm">Phi, Theta</b></p>
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                  <p class="para_td">You can use two angles to define a vector in a coordinate system. Phi is the angle measured from the positive ZC axis. Theta is the angle of rotation in the XC-YC plane, measured from the positive XC axis.</p>
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