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      <region id="22" left="540" top="570" width="373" height="93" color="#000000" bgColor="#ffffff" fontSize="10">
        <math>
          <input>
            <e type="operand">KTriangle</e>
            <e type="operand">L'</e>
            <e type="function" args="1">Polygon</e>
            <e type="operator" args="2">:</e>
          </input>
          <result action="numeric">
            <e type="operand">0</e>
            <e type="operand">1.5</e>
            <e type="operand">7.875</e>
            <e type="operand">4.125</e>
            <e type="operand">2.625</e>
            <e type="operand">9.375</e>
            <e type="operand">0</e>
            <e type="operand">1.5</e>
            <e type="operand">4</e>
            <e type="operand">2</e>
            <e type="function" args="10">mat</e>
          </result>
        </math>
      </region>
      <region id="23" top="730" color="#000000" bgColor="#ffffff">
        <area terminator="true" />
      </region>
    </region>
    <region id="24" left="270" top="750" width="598" height="437" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
      <plot type="2d" render="lines" scale_x="3.55436092866305" scale_y="3.55436092866305" scale_z="0" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-213" transpose_y="-200" transpose_z="0" animate="Z" frameRate="20" repeat="-1">
        <input>
          <e type="operand">OPoints</e>
          <e type="operand">KPoints</e>
          <e type="operand">Triangle</e>
          <e type="operand">KTriangle</e>
          <e type="operand">LineZA</e>
          <e type="operand">LineZB</e>
          <e type="operand">LineZC</e>
          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" args="9">sys</e>
        </input>
      </plot>
    </region>
    <region id="25" left="940" top="770" width="135" height="189" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">L'</e>
        </input>
        <result action="numeric">
          <e type="operand">0</e>
          <e type="operand">1.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">7.875</e>
          <e type="operand">4.125</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">2.625</e>
          <e type="operand">9.375</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">0</e>
          <e type="operand">1.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">sys</e>
        </result>
      </math>
    </region>
    <region id="26" left="980" top="970" width="97" height="39" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">L'</e>
          <e type="operand">4</e>
          <e type="function" args="2">el</e>
          <e type="operand">L'</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="27" left="930" top="1010" width="242" height="93" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">L'</e>
          <e type="operand">1</e>
          <e type="operand">0</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operator" args="2">*</e>
          <e type="function" args="1">sys2mat</e>
        </input>
        <result action="numeric">
          <e type="operand">0</e>
          <e type="operand">7.875</e>
          <e type="operand">2.625</e>
          <e type="operand">0</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">mat</e>
        </result>
      </math>
    </region>
    <region id="28" left="110" top="1240" width="105" height="189" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">L</e>
        </input>
        <result action="numeric">
          <e type="operand">1.5</e>
          <e type="operand">3</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">6</e>
          <e type="operand">4.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">3</e>
          <e type="operand">7.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">1.5</e>
          <e type="operand">3</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">sys</e>
        </result>
      </math>
    </region>
    <region id="29" left="0" top="1250" width="131" height="28" color="#000000" bgColor="#ffffff" fontSize="10">
      <text lang="eng">
        <p>Extend a sys</p>
      </text>
    </region>
    <region id="30" left="210" top="1250" width="65" height="39" color="#000000" bgColor="#ffffff" fontSize="10">
      <math optimize="2">
        <input>
          <e type="operand">L</e>
          <e type="operand">4</e>
          <e type="function" args="2">el</e>
          <e type="operand">Z</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="31" left="290" top="1250" width="105" height="189" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">L</e>
        </input>
        <result action="numeric">
          <e type="operand">1.5</e>
          <e type="operand">3</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">6</e>
          <e type="operand">4.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">3</e>
          <e type="operand">7.5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">3.5</e>
          <e type="operand">5</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">mat</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">sys</e>
        </result>
      </math>
    </region>
    <region id="32" left="470" top="1260" width="232" height="93" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">Triangle</e>
          <e type="operand">1</e>
          <e type="function" args="2">col</e>
        </input>
        <result action="numeric">
          <e type="operand">1.5</e>
          <e type="operand">6</e>
          <e type="operand">3</e>
          <e type="operand">1.5</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">mat</e>
        </result>
      </math>
    </region>
    <region id="33" left="480" top="1310" width="41" height="27" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">Rec</e>
        </input>
      </math>
    </region>
    <region id="34" left="140" top="1440" width="635" height="86" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">Pgn</e>
          <e type="function" args="1">Fläche</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">Pgn</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="function" args="3">el</e>
          <e type="operand">Pgn</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</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="operand">Pgn</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="function" args="3">el</e>
          <e type="operand">Pgn</e>
          <e type="operand">i</e>
          <e type="operand">2</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">i</e>
          <e type="operand">1</e>
          <e type="operand">Pgn</e>
          <e type="function" args="1">rows</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="4">sum</e>
          <e type="operator" args="2">*</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="35" left="140" top="1540" width="205" height="29" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">Triangle</e>
          <e type="function" args="1">Fläche</e>
        </input>
        <result action="numeric">
          <e type="operand">9</e>
        </result>
      </math>
    </region>
  </regions>
</worksheet>