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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
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        <content>
          <p>Nodes:</p>
        </content>
      </text>
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    <region left="351" top="36" width="46" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">E</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="18" top="45" width="257" height="45" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">n</e>
          <e type="operand">0</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">7</e>
          <e type="operand">11</e>
          <e type="operand">19</e>
          <e type="operand">27</e>
          <e type="operand">31</e>
          <e type="operand">35</e>
          <e type="operand">37</e>
          <e type="operand">38</e>
          <e type="operand">0</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">3</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="operand">0</e>
          <e type="operand">2</e>
          <e type="operand">11</e>
          <e type="function" args="24">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="351" top="72" width="46" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">I</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region top="108" color="#000000">
      <area collapsed="true" />
      <region left="27" top="135" width="261" height="200" color="#000000" fontSize="10">
        <math>
          <input>
            <e type="operand">j</e>
            <e type="operand">1</e>
            <e type="operand">n</e>
            <e type="function" args="1">cols</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="function" args="2">range</e>
            <e type="operand">i</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="function" args="2">range</e>
            <e type="operand">i</e>
            <e type="operand">1</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">b</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">n</e>
            <e type="operand">1</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operator" args="2">:</e>
            <e type="operand">i</e>
            <e type="operand">2</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">b</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">n</e>
            <e type="operand">1</e>
            <e type="operand">j</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="3">el</e>
            <e type="operator" args="2">:</e>
            <e type="operand">b</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">n</e>
            <e type="operand">1</e>
            <e type="operand">j</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="3">el</e>
            <e type="operand">n</e>
            <e type="operand">1</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">:</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">for</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">for</e>
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        <math>
          <input>
            <e type="operand">b</e>
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          <result action="numeric">
            <e type="operand">0</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="operand">7</e>
            <e type="operand">11</e>
            <e type="operand">19</e>
            <e type="operand">27</e>
            <e type="operand">31</e>
            <e type="operand">35</e>
            <e type="operand">37</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="operand">7</e>
            <e type="operand">11</e>
            <e type="operand">19</e>
            <e type="operand">27</e>
            <e type="operand">31</e>
            <e type="operand">35</e>
            <e type="operand">37</e>
            <e type="operand">38</e>
            <e type="operand">1</e>
            <e type="operand">2</e>
            <e type="operand">4</e>
            <e type="operand">4</e>
            <e type="operand">8</e>
            <e type="operand">8</e>
            <e type="operand">4</e>
            <e type="operand">4</e>
            <e type="operand">2</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="operand">10</e>
            <e type="function" args="32">mat</e>
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        <math>
          <input>
            <e type="operand">j</e>
            <e type="operand">1</e>
            <e type="operand">5</e>
            <e type="function" args="2">range</e>
            <e type="operand">i</e>
            <e type="operand">1</e>
            <e type="operand">n</e>
            <e type="function" args="1">cols</e>
            <e type="function" args="2">range</e>
            <e type="operand">j</e>
            <e type="operand">1</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">n</e>
            <e type="operand">1</e>
            <e type="operand">i</e>
            <e type="function" args="3">el</e>
            <e type="operator" args="2">:</e>
            <e type="operand">j</e>
            <e type="operand">2</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">0</e>
            <e type="operator" args="2">:</e>
            <e type="operand">j</e>
            <e type="operand">3</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">n</e>
            <e type="operand">2</e>
            <e type="operand">i</e>
            <e type="function" args="3">el</e>
            <e type="operand">3</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand" style="string">*</e>
            <e type="operator" args="2">:</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand" style="string">o</e>
            <e type="operator" args="2">:</e>
            <e type="function" args="3">if</e>
            <e type="operand">j</e>
            <e type="operand">4</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand">20</e>
            <e type="operator" args="2">:</e>
            <e type="operand">n</e>
            <e type="operand">2</e>
            <e type="operand">i</e>
            <e type="function" args="3">el</e>
            <e type="operand">3</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand" style="string">red</e>
            <e type="operator" args="2">:</e>
            <e type="operand">adj.n</e>
            <e type="operand">i</e>
            <e type="operand">j</e>
            <e type="function" args="3">el</e>
            <e type="operand" style="string">black</e>
            <e type="operator" args="2">:</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">for</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="function" args="3">for</e>
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      <region left="360" top="351" width="217" height="208" color="#000000" fontSize="10">
        <math>
          <input>
            <e type="operand">adj.n</e>
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          <result action="numeric">
            <e type="operand">0</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">1</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">3</e>
            <e type="operand">0</e>
            <e type="operand" style="string">*</e>
            <e type="operand">20</e>
            <e type="operand" style="string">red</e>
            <e type="operand">7</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">11</e>
            <e type="operand">0</e>
            <e type="operand" style="string">*</e>
            <e type="operand">20</e>
            <e type="operand" style="string">red</e>
            <e type="operand">19</e>
            <e type="operand">0</e>
            <e type="operand" style="string">*</e>
            <e type="operand">20</e>
            <e type="operand" style="string">red</e>
            <e type="operand">27</e>
            <e type="operand">0</e>
            <e type="operand" style="string">*</e>
            <e type="operand">20</e>
            <e type="operand" style="string">red</e>
            <e type="operand">31</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">35</e>
            <e type="operand">0</e>
            <e type="operand" style="string">*</e>
            <e type="operand">20</e>
            <e type="operand" style="string">red</e>
            <e type="operand">37</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">38</e>
            <e type="operand">0</e>
            <e type="operand" style="string">o</e>
            <e type="operand">20</e>
            <e type="operand" style="string">black</e>
            <e type="operand">11</e>
            <e type="operand">5</e>
            <e type="function" args="57">mat</e>
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        <math>
          <input>
            <e type="operand">plot</e>
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            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="operand">n</e>
            <e type="function" args="1">cols</e>
            <e type="function" args="5">submatrix</e>
            <e type="function" args="1">transpose</e>
            <e type="operand">n</e>
            <e type="function" args="1">cols</e>
            <e type="operand">1</e>
            <e type="function" args="2">matrix</e>
            <e type="function" args="2">augment</e>
            <e type="operand">adj.n</e>
            <e type="operand">2</e>
            <e type="operand">1</e>
            <e type="function" args="4">sys</e>
            <e type="operator" args="2">:</e>
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      <plot type="2d" render="lines" scale_x="0.182437471475994" scale_y="0.409232499449839" scale_z="0.259173365832257" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-157" transpose_y="7" transpose_z="0">
        <input>
          <e type="operand">plot</e>
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    <region left="18" top="1161" width="241" height="63" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">b</e>
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        <result action="numeric">
          <e type="operand">0</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">7</e>
          <e type="operand">11</e>
          <e type="operand">19</e>
          <e type="operand">27</e>
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          <e type="operand">35</e>
          <e type="operand">37</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">7</e>
          <e type="operand">11</e>
          <e type="operand">19</e>
          <e type="operand">27</e>
          <e type="operand">31</e>
          <e type="operand">35</e>
          <e type="operand">37</e>
          <e type="operand">38</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="operand">4</e>
          <e type="operand">4</e>
          <e type="operand">8</e>
          <e type="operand">8</e>
          <e type="operand">4</e>
          <e type="operand">4</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">10</e>
          <e type="function" args="32">mat</e>
        </result>
      </math>
    </region>
    <region left="18" top="1251" width="196" height="190" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">L.d</e>
          <e type="operand">.525</e>
          <e type="operand">.146875</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.146875</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.1125</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.1125</e>
          <e type="operand">.1125</e>
          <e type="operand">.1125</e>
          <e type="operand">.1125</e>
          <e type="operand">.1125</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.146875</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.525</e>
          <e type="operand">.146875</e>
          <e type="operator" args="2">+</e>
          <e type="operand">.1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="12">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="18" top="1458" width="295" height="553" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">j</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" args="2">range</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">b</e>
          <e type="function" args="1">cols</e>
          <e type="function" args="2">range</e>
          <e type="operand">j</e>
          <e type="operand">1</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">n</e>
          <e type="operand">2</e>
          <e type="operand">i</e>
          <e type="function" args="3">el</e>
          <e type="operand">0</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">FEM</e>
          <e type="operand">i</e>
          <e type="operand">j</e>
          <e type="function" args="3">el</e>
          <e type="operand">0</e>
          <e type="operator" args="2">:</e>
          <e type="operand">n</e>
          <e type="operand">2</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="3">el</e>
          <e type="operand">0</e>
          <e type="operator" args="2">≡</e>
          <e type="bracket">(</e>
          <e type="operand">n</e>
          <e type="operand">2</e>
          <e type="operand">i</e>
          <e type="function" args="3">el</e>
          <e type="operand">0</e>
          <e type="operator" args="2">≠</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">&amp;</e>
          <e type="operand">FEM</e>
          <e type="operand">i</e>
          <e type="operand">j</e>
          <e type="function" args="3">el</e>
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          <e type="function" args="3">el</e>
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          <e type="function" args="3">el</e>
          <e type="operand">L.d</e>
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          <e type="operand">i</e>
          <e type="function" args="2">el</e>
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          <e type="operand">12</e>
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          <e type="function" args="3">el</e>
          <e type="operand">0</e>
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          <e type="operand">L.d</e>
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          <e type="operand">L.d</e>
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          <e type="function" args="2">el</e>
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          <e type="function" args="3">el</e>
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          <e type="operator" args="2">^</e>
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          <e type="operand">12</e>
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          <e type="function" args="3">if</e>
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          <e type="function" args="3">line</e>
          <e type="function" args="3">if</e>
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          <e type="operand">1</e>
          <e type="function" args="3">line</e>
          <e type="function" args="3">if</e>
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          <e type="operand">1</e>
          <e type="function" args="3">line</e>
          <e type="function" args="3">for</e>
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          <e type="operand">1</e>
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      <math>
        <input>
          <e type="operand">i</e>
          <e type="operand">i</e>
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      <math>
        <input>
          <e type="operand">j</e>
          <e type="operand">j</e>
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      <math>
        <input>
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      <math>
        <input>
          <e type="operand">j</e>
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          <e type="function" args="3">el</e>
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      <math>
        <input>
          <e type="operand">θ</e>
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      <math>
        <input>
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          <e type="function" args="3">el</e>
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          <e type="operand">20</e>
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          <e type="operand">6</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
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          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
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          <e type="operand">6</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
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          <e type="operand">5</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">4</e>
          <e type="operator" args="2">/</e>
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          <e type="operator" args="1">-</e>
          <e type="operand">5</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">6</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
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          <e type="operator" args="2">+</e>
          <e type="operand">12</e>
          <e type="operator" args="2">+</e>
          <e type="operand">20</e>
          <e type="operator" args="2">/</e>
          <e type="operand">17</e>
          <e type="operator" args="1">-</e>
          <e type="operand">30</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
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          <e type="operand">9</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">θ</e>
          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
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          <e type="operator" args="2">+</e>
          <e type="operand">9</e>
          <e type="operator" args="2">+</e>
          <e type="operand">60</e>
          <e type="operator" args="2">/</e>
          <e type="operand">79</e>
          <e type="operator" args="1">-</e>
          <e type="operand">480</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">9</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">9</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">272</e>
          <e type="operator" args="2">+</e>
          <e type="operand">960</e>
          <e type="operator" args="2">/</e>
          <e type="operand">158</e>
          <e type="operand">3</e>
          <e type="operand">247</e>
          <e type="operator" args="1">-</e>
          <e type="operand">640</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">9</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">11</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">1920</e>
          <e type="operator" args="2">/</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="operand">θ</e>
          <e type="operand">11</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">*</e>
          <e type="operand">θ</e>
          <e type="operand">10</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operator" args="2">+</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">11</e>
          <e type="operand">1</e>
          <e type="function" args="13">mat</e>
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        <input>
          <e type="operand">β</e>
          <e type="operand">M.e</e>
          <e type="operand">θ</e>
          <e type="function" args="2">roots</e>
          <e type="operator" args="2">:</e>
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</worksheet>