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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
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      <text lang="eng">
        <p>Combinet biaxial bending and tension/compression
of rectangular concrete section</p>
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          <e type="operand">4</e>
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          <e type="operand">ε</e>
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          <e type="operand">1000</e>
          <e type="operand">ε</e>
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          <e type="operand">250</e>
          <e type="operand">ε</e>
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          <e type="operand">1</e>
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          <e type="operator" args="2">*</e>
          <e type="operand">f.cd</e>
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        <p>Concrete constitutive equation</p>
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      <text lang="eng">
        <p>Concrete design strenght</p>
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          <e type="operand">f.cd</e>
          <e type="operand">35</e>
          <e type="operand" style="unit">MPa</e>
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        <p>Steel constitutive</p>
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          <e type="operand">ε</e>
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          <e type="operand">E.s</e>
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      <text lang="eng">
        <p>Steel Young's modulus</p>
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          <e type="operand">E.s</e>
          <e type="operand">210</e>
          <e type="operand" style="unit">GPa</e>
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          <e type="operand">V</e>
          <e type="operand" style="string">ID</e>
          <e type="operand" style="string">x</e>
          <e type="operand" style="string">y</e>
          <e type="operand">1</e>
          <e type="operand">0</e>
          <e type="operand">0</e>
          <e type="operand">2</e>
          <e type="operand">14</e>
          <e type="operand" style="unit">cm</e>
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          <e type="operand">0</e>
          <e type="operand">3</e>
          <e type="operand">14</e>
          <e type="operand" style="unit">cm</e>
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          <e type="operand">14</e>
          <e type="operand" style="unit">cm</e>
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          <e type="operand">4</e>
          <e type="operand">0</e>
          <e type="operand">14</e>
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          <e type="operand">3</e>
          <e type="function" args="20">mat</e>
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          <p>Some definitions</p>
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            <e type="operand">V</e>
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            <e type="operand">2</e>
            <e type="operand">V</e>
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            <e type="operand">14</e>
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            <e type="operand">14</e>
            <e type="operand">0</e>
            <e type="operand">14</e>
            <e type="operand">0</e>
            <e type="operand">0</e>
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            <e type="operand">14</e>
            <e type="operand">14</e>
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            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">mat</e>
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            <e type="operand">5</e>
            <e type="operand">1</e>
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          <e type="operand">n.v</e>
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          <e type="operand">7</e>
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          <e type="operand">7</e>
          <e type="operand" style="unit">cm</e>
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          <e type="operator" args="2">:</e>
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          <e type="operand" style="string">x</e>
          <e type="operand" style="string">y</e>
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          <e type="operand" style="string">ϕ</e>
          <e type="operand">25</e>
          <e type="operand" style="unit">mm</e>
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          <e type="operand">25</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">12</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">115</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">115</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">12</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">115</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">25</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">12</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">25</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">115</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">12</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operand">5</e>
          <e type="operand">4</e>
          <e type="function" args="22">mat</e>
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        <p>Rebar matrix</p>
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      <area collapsed="true">
        <title lang="ita">
          <p>Some definitions</p>
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            <e type="operand">barre</e>
            <e type="operand">2</e>
            <e type="operand">barre</e>
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            <e type="operand">1</e>
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            <e type="operand">barre</e>
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            <e type="operand">2</e>
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            <e type="operand">x.s</e>
            <e type="operand">y.s</e>
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            <e type="operand">num</e>
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            <e type="operand">2</e>
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            <e type="operand">3</e>
            <e type="operand">3</e>
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            <e type="operand">dia</e>
            <e type="operand">barre</e>
            <e type="operand">2</e>
            <e type="operand">barre</e>
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            <e type="operand">4</e>
            <e type="operand">4</e>
            <e type="function" args="5">submatrix</e>
            <e type="operator" args="2">:</e>
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            <e type="operand">i</e>
            <e type="operand">1</e>
            <e type="operand">num</e>
            <e type="function" args="1">length</e>
            <e type="function" args="2">range</e>
            <e type="operand">num</e>
            <e type="operand">i</e>
            <e type="function" args="2">el</e>
            <e type="operand" style="string"></e>
            <e type="operator" args="2">≠</e>
            <e type="operand">A.s</e>
            <e type="operand">i</e>
            <e type="function" args="2">el</e>
            <e type="operand">num</e>
            <e type="operand">i</e>
            <e type="function" args="2">el</e>
            <e type="operand">π</e>
            <e type="operand">4</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">dia</e>
            <e type="operand">i</e>
            <e type="function" args="2">el</e>
            <e type="bracket">(</e>
            <e type="operand">2</e>
            <e type="operator" args="2">^</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">:</e>
            <e type="operand">A.s</e>
            <e type="operand">i</e>
            <e type="function" args="2">el</e>
            <e type="function" args="3">if</e>
            <e type="function" args="3">for</e>
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          <e type="operand">x.s</e>
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          <e type="operand">25</e>
          <e type="operand">115</e>
          <e type="operand">115</e>
          <e type="operand">25</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">mat</e>
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          <e type="operand">y.s</e>
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          <e type="operand" style="unit">mm</e>
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          <e type="operand">25</e>
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          <e type="operand">25</e>
          <e type="operand">115</e>
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          <e type="operand">1</e>
          <e type="function" args="6">mat</e>
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          <e type="operand">A.s</e>
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          <e type="operand" style="unit">mm</e>
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          <e type="operand">113.1</e>
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          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">mat</e>
        </result>
      </math>
    </region>
    <region id="36" left="0" top="1323" width="69" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>Rebar #</p>
      </text>
    </region>
    <region id="37" left="117" top="1323" width="191" height="31" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="0">
        <input>
          <e type="operand">n.b</e>
          <e type="operand">barre</e>
          <e type="function" args="1">rows</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">4</e>
        </result>
      </math>
    </region>
    <region id="38" left="387" top="1323" width="62" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">arm</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="39" left="0" top="1368" width="171" height="28" border="true" color="#000000" bgColor="#ffffff" fontSize="12">
      <text lang="ita">
        <p>External actions</p>
      </text>
    </region>
    <region id="40" left="0" top="1404" width="102" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>Axial force</p>
      </text>
    </region>
    <region id="41" left="198" top="1404" width="78" height="30" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">N.Ed</e>
          <e type="operand">0</e>
          <e type="operand" style="unit">kN</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="42" left="0" top="1431" width="119" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="eng">
        <p>Bending mom X</p>
      </text>
    </region>
    <region id="43" left="198" top="1431" width="135" height="31" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">M.x.Ed</e>
          <e type="operand">20</e>
          <e type="operator" args="1">-</e>
          <e type="bracket">(</e>
          <e type="operand" style="unit">kN</e>
          <e type="operator" args="2">*</e>
          <e type="operand" style="unit">m</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="44" left="0" top="1467" width="119" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>Bending mom Y</p>
      </text>
    </region>
    <region id="45" left="198" top="1467" width="135" height="31" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">M.y.Ed</e>
          <e type="operand">20</e>
          <e type="operator" args="1">-</e>
          <e type="bracket">(</e>
          <e type="operand" style="unit">kN</e>
          <e type="operator" args="2">*</e>
          <e type="operand" style="unit">m</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="46" left="0" top="1503" width="171" height="28" border="true" color="#000000" bgColor="#ffffff" fontSize="12">
      <text lang="ita">
        <p>Internal actions</p>
      </text>
    </region>
    <region id="47" left="198" top="1548" width="377" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math optimize="2">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">ε</e>
          <e type="operand">ε.G</e>
          <e type="operand">y</e>
          <e type="operand">y.G.CLS</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operand">χ.x</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">x</e>
          <e type="operand">x.G.CLS</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operand">χ.y</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="48" left="0" top="1557" width="152" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>Deformation func.</p>
      </text>
    </region>
    <region id="49" left="207" top="1602" width="148" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">x.min</e>
          <e type="operand">x.v</e>
          <e type="function" args="1">min</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">0</e>
        </result>
      </math>
    </region>
    <region id="50" left="0" top="1611" width="193" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>Integration boundaries</p>
      </text>
    </region>
    <region id="51" left="207" top="1629" width="172" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">x.max</e>
          <e type="operand">x.v</e>
          <e type="function" args="1">max</e>
          <e type="operator" args="2">:</e>
        </input>
        <contract>
          <e type="operand" style="unit">mm</e>
        </contract>
        <result action="numeric">
          <e type="operand">140</e>
        </result>
      </math>
    </region>
    <region id="52" left="207" top="1665" width="148" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">y.min</e>
          <e type="operand">y.v</e>
          <e type="function" args="1">min</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">0</e>
        </result>
      </math>
    </region>
    <region id="53" left="207" top="1692" width="172" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">y.max</e>
          <e type="operand">y.v</e>
          <e type="function" args="1">max</e>
          <e type="operator" args="2">:</e>
        </input>
        <contract>
          <e type="operand" style="unit">mm</e>
        </contract>
        <result action="numeric">
          <e type="operand">140</e>
        </result>
      </math>
    </region>
    <region id="54" top="1737" color="#000000" bgColor="#ffffff">
      <area collapsed="true">
        <title lang="eng">
          <p>Units purge</p>
        </title>
      </area>
      <region id="55" left="0" top="1764" width="160" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">y.G.CLS</e>
            <e type="operand">y.G.CLS</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">70</e>
          </result>
        </math>
      </region>
      <region id="56" left="171" top="1764" width="160" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">x.G.CLS</e>
            <e type="operand">x.G.CLS</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">70</e>
          </result>
        </math>
      </region>
      <region id="57" left="0" top="1827" width="158" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">E.s</e>
            <e type="operand">E.s</e>
            <e type="operand" style="unit">MPa</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">2.1</e>
            <e type="operand">10</e>
            <e type="operand">5</e>
            <e type="operator" args="2">^</e>
            <e type="operator" args="2">*</e>
          </result>
        </math>
      </region>
      <region id="58" left="198" top="1827" width="122" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">f.cd</e>
            <e type="operand">f.cd</e>
            <e type="operand" style="unit">MPa</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">35</e>
          </result>
        </math>
      </region>
      <region id="59" left="369" top="1890" width="90" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">x.min</e>
            <e type="operand">x.min</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region id="60" left="504" top="1890" width="90" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">y.min</e>
            <e type="operand">y.min</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region id="61" left="0" top="1899" width="131" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">x.v</e>
            <e type="operand">x.v</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">0</e>
            <e type="operand">140</e>
            <e type="operand">140</e>
            <e type="operand">0</e>
            <e type="operand">0</e>
            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">mat</e>
          </result>
        </math>
      </region>
      <region id="62" left="171" top="1899" width="131" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">y.v</e>
            <e type="operand">y.v</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">0</e>
            <e type="operand">0</e>
            <e type="operand">140</e>
            <e type="operand">140</e>
            <e type="operand">0</e>
            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">mat</e>
          </result>
        </math>
      </region>
      <region id="63" left="369" top="1980" width="90" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">x.max</e>
            <e type="operand">x.max</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region id="64" left="504" top="1980" width="90" height="47" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">y.max</e>
            <e type="operand">y.max</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region id="65" left="324" top="2061" width="157" height="81" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">A.s</e>
            <e type="operand">A.s</e>
            <e type="operand" style="unit">mm</e>
            <e type="operand">2</e>
            <e type="operator" args="2">^</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">113.1</e>
            <e type="operand">113.1</e>
            <e type="operand">113.1</e>
            <e type="operand">113.1</e>
            <e type="operand">4</e>
            <e type="operand">1</e>
            <e type="function" args="6">mat</e>
          </result>
        </math>
      </region>
      <region id="66" left="0" top="2070" width="131" height="81" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">x.s</e>
            <e type="operand">x.s</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">25</e>
            <e type="operand">115</e>
            <e type="operand">115</e>
            <e type="operand">25</e>
            <e type="operand">4</e>
            <e type="operand">1</e>
            <e type="function" args="6">mat</e>
          </result>
        </math>
      </region>
      <region id="67" left="171" top="2070" width="131" height="81" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">y.s</e>
            <e type="operand">y.s</e>
            <e type="operand" style="unit">mm</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">25</e>
            <e type="operand">115</e>
            <e type="operand">25</e>
            <e type="operand">115</e>
            <e type="operand">4</e>
            <e type="operand">1</e>
            <e type="function" args="6">mat</e>
          </result>
        </math>
      </region>
      <region id="68" left="0" top="2187" width="677" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
        <math decimalPlaces="4">
          <input>
            <e type="operand">ε.G</e>
            <e type="operand">χ.x</e>
            <e type="operand">χ.y</e>
            <e type="operand">x</e>
            <e type="operand">y</e>
            <e type="function" args="5">ε</e>
            <e type="operand">ε.G</e>
            <e type="operand">y</e>
            <e type="operand">y.G.CLS</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">χ.x</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="operand">x</e>
            <e type="operand">x.G.CLS</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">χ.y</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="symbolic">
            <e type="operand">ε.G</e>
            <e type="operand">70</e>
            <e type="operator" args="1">-</e>
            <e type="operand">y</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">χ.x</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="operand">70</e>
            <e type="operator" args="1">-</e>
            <e type="operand">x</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">χ.y</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
          </result>
        </math>
      </region>
      <region id="69" top="2232" color="#000000" bgColor="#ffffff">
        <area terminator="true" />
      </region>
    </region>
    <region id="70" left="0" top="2268" width="93" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">θ</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="71" left="0" top="2295" width="519" height="82" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int.CLS</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">θ</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.c</e>
          <e type="operator" args="2">*</e>
          <e type="operand">x</e>
          <e type="operand">x.min</e>
          <e type="operand">x.max</e>
          <e type="function" args="4">int</e>
          <e type="operand">y</e>
          <e type="operand">y.min</e>
          <e type="operand">y.max</e>
          <e type="function" args="4">int</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="72" left="0" top="2385" width="532" height="82" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int.CLS</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">θ</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.c</e>
          <e type="operator" args="2">*</e>
          <e type="operand">x</e>
          <e type="operand">x.min</e>
          <e type="operand">x.max</e>
          <e type="function" args="4">int</e>
          <e type="operand">y</e>
          <e type="operand">y.min</e>
          <e type="operand">y.max</e>
          <e type="function" args="4">int</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="73" left="0" top="2466" width="618" height="82" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int.CLS</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">θ</e>
          <e type="operand">x</e>
          <e type="operand">x.G.CLS</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.c</e>
          <e type="operator" args="2">*</e>
          <e type="operand">x</e>
          <e type="operand">x.min</e>
          <e type="operand">x.max</e>
          <e type="function" args="4">int</e>
          <e type="operand">y</e>
          <e type="operand">y.min</e>
          <e type="operand">y.max</e>
          <e type="function" args="4">int</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="74" left="0" top="2583" width="479" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int.As</e>
          <e type="operand">i</e>
          <e type="function" args="1">Clear</e>
          <e type="operand">arm</e>
          <e type="operand">A.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">y.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.s</e>
          <e type="operator" args="2">*</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">n.b</e>
          <e type="function" args="4">sum</e>
          <e type="operator" args="2">*</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="75" left="0" top="2691" width="594" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int.As</e>
          <e type="operand">i</e>
          <e type="function" args="1">Clear</e>
          <e type="operand">arm</e>
          <e type="operand">A.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">y.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">y.G.CLS</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">y.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.s</e>
          <e type="operator" args="2">*</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">n.b</e>
          <e type="function" args="4">sum</e>
          <e type="operator" args="2">*</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="76" left="0" top="2799" width="594" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int.As</e>
          <e type="operand">i</e>
          <e type="function" args="1">Clear</e>
          <e type="operand">arm</e>
          <e type="operand">A.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">x.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">x.G.CLS</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">x.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">y.s</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="function" args="5">ε</e>
          <e type="function" args="1">σ.s</e>
          <e type="operator" args="2">*</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">n.b</e>
          <e type="function" args="4">sum</e>
          <e type="operator" args="2">*</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="77" left="0" top="2916" width="437" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int.CLS</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int.As</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="78" left="0" top="2961" width="476" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int.CLS</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int.As</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="79" left="0" top="3006" width="476" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int.CLS</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int.As</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="80" left="0" top="3060" width="238" height="24" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>internal forces comparison: </p>
      </text>
    </region>
    <region id="81" left="0" top="3087" width="150" height="39" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false" decimalPlaces="4">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">1.9465</e>
          <e type="operand">10</e>
          <e type="operand">3</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="82" left="162" top="3087" width="174" height="39" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false" decimalPlaces="4">
        <input>
          <e type="operand">y.0</e>
          <e type="operand">0.0698195</e>
          <e type="operand">10</e>
          <e type="operand">3</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="83" left="342" top="3087" width="174" height="39" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">z.0</e>
          <e type="operand">0.0698195</e>
          <e type="operand">10</e>
          <e type="operand">3</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="84" left="0" top="3132" width="246" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">N.int.CLS</e>
        </input>
        <result action="numeric">
          <e type="operand">1.85</e>
          <e type="operand">10</e>
          <e type="operand">5</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
        </result>
      </math>
    </region>
    <region id="85" left="0" top="3177" width="271" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">M.x.int.CLS</e>
        </input>
        <result action="numeric">
          <e type="operand">6.57</e>
          <e type="operand">10</e>
          <e type="operand">6</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
        </result>
      </math>
    </region>
    <region id="86" left="0" top="3222" width="271" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">M.y.int.CLS</e>
        </input>
        <result action="numeric">
          <e type="operand">6.57</e>
          <e type="operand">10</e>
          <e type="operand">6</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
        </result>
      </math>
    </region>
    <region id="87" left="0" top="3276" width="251" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">N.int.As</e>
        </input>
        <result action="numeric">
          <e type="operand">1.85</e>
          <e type="operand">10</e>
          <e type="operand">5</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
        </result>
      </math>
    </region>
    <region id="88" left="0" top="3321" width="264" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">M.x.int.As</e>
        </input>
        <result action="numeric">
          <e type="operand">1.34</e>
          <e type="operand">10</e>
          <e type="operand">7</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
        </result>
      </math>
    </region>
    <region id="89" left="0" top="3366" width="264" height="40" color="#000000" bgColor="#80ff80" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">M.y.int.As</e>
        </input>
        <result action="numeric">
          <e type="operand">1.34</e>
          <e type="operand">10</e>
          <e type="operand">7</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
        </result>
      </math>
    </region>
    <region id="90" left="297" top="3384" width="283" height="40" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="ita">
        <p>just like discretization example,
so no input errors</p>
      </text>
    </region>
    <region id="91" top="3420" color="#000000" bgColor="#ffffff">
      <area single="true" collapsed="true" />
    </region>
    <region id="92" left="0" top="3456" width="322" height="132" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">N.int</e>
          <e type="operand">N.Ed</e>
          <e type="operand" style="unit">N</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">-</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.x.int</e>
          <e type="operand">M.x.Ed</e>
          <e type="operand" style="unit">N</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">-</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">M.y.int</e>
          <e type="operand">M.y.Ed</e>
          <e type="operand" style="unit">N</e>
          <e type="operand" style="unit">mm</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">-</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="93" left="360" top="3474" width="245" height="117" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="1" trailingZeros="true">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="function" args="1">Unknowns</e>
        </input>
        <result action="symbolic">
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">5</e>
          <e type="operand">1</e>
          <e type="function" args="7">mat</e>
        </result>
      </math>
    </region>
    <region id="94" left="0" top="3600" width="336" height="83" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false" decimalPlaces="4">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">Jac</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
          <e type="function" args="2">Jacob</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="95" left="0" top="3690" width="594" height="141" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">Jac</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">ε.G</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.x</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.y</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">ε.G</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.x</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.y</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">ε.G</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.x</e>
          <e type="function" args="2">diff</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">χ.y</e>
          <e type="function" args="2">diff</e>
          <e type="operand">3</e>
          <e type="operand">3</e>
          <e type="function" args="11">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="96" left="630" top="3780" width="349" height="43" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="function" args="3">Jac</e>
          <e type="function" args="1">Unknowns</e>
          <e type="function" args="1">transpose</e>
        </input>
        <result action="symbolic">
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">1</e>
          <e type="operand">5</e>
          <e type="function" args="7">mat</e>
        </result>
      </math>
    </region>
    <region id="97" left="0" top="3861" width="191" height="35" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false" decimalPlaces="4">
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">j</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">Jac</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="98" left="198" top="3861" width="287" height="40" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false">
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">j</e>
          <e type="function" args="1">Unknowns</e>
          <e type="function" args="1">transpose</e>
        </input>
        <result action="symbolic">
          <e type="operand">u</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">ε.G</e>
          <e type="operand">χ.x</e>
          <e type="operand">χ.y</e>
          <e type="operand">1</e>
          <e type="operand">6</e>
          <e type="function" args="8">mat</e>
        </result>
      </math>
    </region>
    <region id="99" left="0" top="3915" width="175" height="35" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">f</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="100" left="189" top="3924" width="221" height="37" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">f</e>
          <e type="function" args="1">Unknowns</e>
          <e type="function" args="1">transpose</e>
        </input>
        <result action="symbolic">
          <e type="operand">u</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="function" args="5">mat</e>
        </result>
      </math>
    </region>
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      <math>
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">j</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">u</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="3">F</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="operand">u</e>
          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="function" args="2">diff</e>
          <e type="operand">3</e>
          <e type="operand">3</e>
          <e type="function" args="11">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="102" left="387" top="4158" width="221" height="37" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">u</e>
          <e type="function" args="1">j</e>
          <e type="function" args="1">Unknowns</e>
          <e type="function" args="1">transpose</e>
        </input>
        <result action="symbolic">
          <e type="operand">u</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="function" args="5">mat</e>
        </result>
      </math>
    </region>
    <region id="103" left="0" top="4185" width="68" height="30" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">x.0</e>
          <e type="operand">0.1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="104" left="99" top="4185" width="68" height="30" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">y.0</e>
          <e type="operand">0.1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="105" left="180" top="4185" width="68" height="30" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">z.0</e>
          <e type="operand">0.1</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="106" left="0" top="4230" width="240" height="63" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">X0</e>
          <e type="operand">x.0</e>
          <e type="operand">y.0</e>
          <e type="operand">z.0</e>
          <e type="function" args="3">stack</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">0.1</e>
          <e type="operand">0.1</e>
          <e type="operand">0.1</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
        </result>
      </math>
    </region>
    <region id="107" left="144" top="4293" width="92" height="33" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">Eps</e>
          <e type="operand">10</e>
          <e type="operand">4</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="108" left="0" top="4302" width="110" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">StepMax</e>
          <e type="operand">500</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="109" left="0" top="4329" width="255" height="34" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">start</e>
          <e type="operand">0</e>
          <e type="function" args="1">time</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">1.3235</e>
          <e type="operand">10</e>
          <e type="operand">10</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operand" style="unit">s</e>
          <e type="operator" args="2">*</e>
        </result>
      </math>
    </region>
    <region id="110" left="0" top="4374" width="385" height="28" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">res</e>
          <e type="operand">X0</e>
          <e type="operand">StepMax</e>
          <e type="operand">Eps</e>
          <e type="operand">u</e>
          <e type="function" args="1">f</e>
          <e type="operand">u</e>
          <e type="function" args="1">j</e>
          <e type="function" args="5">al_nleqsolve</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="111" left="0" top="4419" width="281" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="4">
        <input>
          <e type="operand">sol_time</e>
          <e type="operand">0</e>
          <e type="function" args="1">time</e>
          <e type="operand">start</e>
          <e type="operator" args="2">-</e>
          <e type="operator" args="2">:</e>
        </input>
        <contract>
          <e type="operand" style="unit">s</e>
        </contract>
        <result action="numeric">
          <e type="operand">36.518</e>
        </result>
      </math>
    </region>
    <region id="112" left="0" top="4464" width="72" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <math error="2" decimalPlaces="6">
        <input>
          <e type="operand">res</e>
        </input>
        <result action="symbolic">
          <e type="operand">#</e>
        </result>
      </math>
    </region>
    <region id="113" left="0" top="4581" width="191" height="81" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="1" trailingZeros="true">
        <input>
          <e type="operand">res</e>
          <e type="operand">0.001946</e>
          <e type="operator" args="1">-</e>
          <e type="operand">6.981964</e>
          <e type="operand">10</e>
          <e type="operand">5</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operand">6.981964</e>
          <e type="operand">10</e>
          <e type="operand">5</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="114" left="207" top="4599" width="180" height="63" color="#000000" bgColor="#ffffff" fontSize="10">
      <math evaluate="false" decimalPlaces="4">
        <input>
          <e type="operand">res</e>
          <e type="function" args="1">f</e>
        </input>
        <result action="numeric">
          <e type="operand">66.5499</e>
          <e type="operand">434.6075</e>
          <e type="operator" args="1">-</e>
          <e type="operand">434.6075</e>
          <e type="operator" args="1">-</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
        </result>
      </math>
    </region>
    <region id="115" left="396" top="4599" width="146" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="1" trailingZeros="true">
        <input>
          <e type="operand">171.547</e>
          <e type="operand" style="unit">s</e>
          <e type="operator" args="2">*</e>
        </input>
        <contract>
          <e type="operand" style="unit">min</e>
        </contract>
        <result action="numeric">
          <e type="operand">2.9</e>
        </result>
      </math>
    </region>
  </regions>
</worksheet>