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        <e type="operand">x</e>
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    <math>
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        <e type="operand">lastError</e>
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        <e type="operand">tmp</e>
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        <e type="operator" args="2">:</e>
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        <e type="operand" style="string">{x*(x^2+y^2+D^2-(sqrt(x^2+y^2+D^2)-sqrt(y^2+D^2))*(sqrt(x^2+y^2+D^2)+sqrt(y^2+D^2)))*sqrt({(sqrt(x^2+y^2+D^2)-sqrt(y^2+D^2))*(sqrt(x^2+y^2+D^2)+sqrt(y^2+D^2))}/{(sqrt(x^2+y^2+D^2))^2})}/{(x^2+y^2+D^2)*(sqrt(x^2+y^2+D^2)-sqrt(y^2+D^2))*(sqrt(x^2+y^2+D^2)+sqrt(y^2+D^2))*(1+(sqrt({(sqrt(x^2+y^2+D^2)-sqrt(y^2+D^2))*(sqrt(x^2+y^2+D^2)+sqrt(y^2+D^2))}/{(sqrt(x^2+y^2+D^2))^2}))^2)}</e>
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    <math decimalPlaces="4">
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        <e type="operand">res</e>
        <e type="function" preserve="true" args="1">str2num</e>
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    <math decimalPlaces="4">
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        <e type="function" preserve="true" args="1">maple</e>
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        <e type="operator" args="2">^</e>
        <e type="operand">D</e>
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      <input>
        <e type="operand">tmp4</e>
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        <e type="function" args="2">Vm</e>
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        <e type="function" args="2">Vφ</e>
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      </input>
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    <math decimalPlaces="4">
      <input>
        <e type="operand">lastError</e>
      </input>
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        <e type="operand" style="string">Matrix must be square.</e>
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    </math>
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    <math>
      <input>
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      </input>
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  </region>
  <region id="26" left="18" top="1467" width="264" height="122" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2" decimalPlaces="4">
      <description active="true" position="Top" lang="eng">
        <p>Mesh U, V  within the bounds L, H</p>
      </description>
      <input>
        <e type="operand">L</e>
        <e type="operand">H</e>
        <e type="operand">N</e>
        <e type="function" args="3">xd</e>
        <e type="operand">U</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">dx</e>
        <e type="operand">H</e>
        <e type="operand">L</e>
        <e type="operator" args="2">-</e>
        <e type="operand">N</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operand">N</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">U</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">L</e>
        <e type="operand">dx</e>
        <e type="operand">i</e>
        <e type="operator" args="2">*</e>
        <e type="operand">dx</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="function" preserve="true" args="3">for</e>
        <e type="operand">U</e>
        <e type="operand">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="27" left="324" top="1467" width="405" height="172" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2" decimalPlaces="4">
      <description active="true" position="Top" lang="eng">
        <p>Generate the symmetric square [U,V] matrix</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="operand">y</e>
        <e type="function" args="2">f</e>
        <e type="operand">U</e>
        <e type="operand">V</e>
        <e type="function" args="3">Sym</e>
        <e type="operand">r</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operand">U</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">c</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="operand">V</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">M</e>
        <e type="operand">r</e>
        <e type="operand">c</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">U</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">V</e>
        <e type="operand">j</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">c</e>
        <e type="operand">c</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="operator" args="2">:</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">r</e>
        <e type="operand">r</e>
        <e type="operand">1</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" preserve="true" args="5">line</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">M</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="28" left="18" top="1665" width="467" height="55" color="#000000" bgColor="#ffff80" fontSize="10">
    <math optimize="2" decimalPlaces="4" exponentialThreshold="3">
      <input>
        <e type="operand">M</e>
        <e type="operand">Low</e>
        <e type="operand">High</e>
        <e type="function" args="3">Scale</e>
        <e type="operand">High</e>
        <e type="operand">Low</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">M</e>
        <e type="operand">M</e>
        <e type="function" preserve="true" args="1">Min</e>
        <e type="operator" args="2">-</e>
        <e type="operand">M</e>
        <e type="function" preserve="true" args="1">Max</e>
        <e type="operand">M</e>
        <e type="function" preserve="true" args="1">Min</e>
        <e type="operator" args="2">-</e>
        <e type="operand">10</e>
        <e type="operand">6</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">^</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="operand">Low</e>
        <e type="operator" args="2">+</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="29" left="18" top="1728" width="210" height="208" color="#000000" bgColor="#ffffff" fontSize="10">
    <xyplot width="200" height="200" smoothing="false" points="100">
      <propertiessource index="1" sourcetype="PropertyGrid" />
      <grid gridcolor="LightGray" gridpattern="Solid" gridthickness="1" isxgrid="true" isygrid="true" />
      <xaxes xmin="-5" xmax="5" xtick="2.5" numberformat="General" decimalplaces="3" />
      <yaxes ymin="-5" ymax="5" ytick="2.5" numberformat="General" decimalplaces="3" />
      <y2axes isy2axis="false" y2min="-1" y2max="1" y2tick="0.5" numberformat="General" decimalplaces="3" />
      <title2d title="" titlefont="Arial, 12pt" titlefontcolor="Black" />
      <xylabel labelfont="Arial, 10pt" labelfontcolor="Black" tickfont="Courier New, 10pt" tickfontcolor="Black" xlabel="x" ylabel="y" y2label="y2" />
      <legend isbordervisible="true" islegendvisible="false" legendbackcolor="White" legendbordercolor="Black" legendfont="Arial, 8pt" legendposition="NorthEast" textcolor="Black" />
      <traces>
        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="Blue" linethickness="1" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
      </traces>
      <input>
        <e type="operand">f</e>
      </input>
    </xyplot>
  </region>
  <region id="30" left="324" top="1728" width="164" height="27" color="#000000" bgColor="#ffff80" fontSize="10">
    <math fractionType="auto" decimalPlaces="6">
      <input>
        <e type="operand">L</e>
        <e type="operand">10</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">:</e>
        <e type="operand">H</e>
        <e type="operand">10</e>
        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">50</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">3</e>
        <e type="function" preserve="true" args="5">mat</e>
      </input>
    </math>
  </region>
  <region id="31" left="324" top="1755" width="119" height="26" color="#000000" bgColor="#ffff80" fontSize="10">
    <math decimalPlaces="4">
      <input>
        <e type="operand">U</e>
        <e type="operand">L</e>
        <e type="operand">H</e>
        <e type="operand">N</e>
        <e type="function" args="3">xd</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="32" left="459" top="1755" width="43" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <math decimalPlaces="4">
      <input>
        <e type="operand">V</e>
        <e type="operand">U</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="33" left="324" top="1791" width="172" height="28" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2" decimalPlaces="4">
      <input>
        <e type="operand">M</e>
        <e type="operand">x</e>
        <e type="operand">y</e>
        <e type="function" args="2">f</e>
        <e type="operand">U</e>
        <e type="operand">V</e>
        <e type="function" args="3">Sym</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="34" left="324" top="1818" width="161" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math fractionType="auto" decimalPlaces="6">
      <input>
        <e type="operand">M</e>
        <e type="operand">M</e>
        <e type="operand">0</e>
        <e type="operand">255</e>
        <e type="function" args="3">Scale</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="35" left="324" top="1845" width="61" height="59" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <image>
      <imagefile filename="sx2fy.png" lenght="1580" width="51" height="51" option="border=false;" dataRenderXmlLength="0" renderExt=".png" OLDwidht="51" OLDheight="51" select_rotation="0°">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</imagefile>
      <input>
        <e type="operand">M</e>
      </input>
    </image>
  </region>
  <region id="36" left="18" top="2061" width="125" height="27" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">D</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">α</e>
        <e type="operand">0.375</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
      </input>
    </math>
  </region>
  <region id="37" left="18" top="2097" width="1051" height="162" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="0">
      <input>
        <e type="operand">x</e>
        <e type="operand">y</e>
        <e type="function" args="2">q</e>
        <e type="operand">x</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
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        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
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        <e type="function" preserve="true" args="1">sqrt</e>
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        <e type="operand">D</e>
        <e type="operand">2</e>
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        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
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        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">*</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="bracket">(</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="2">*</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">y</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">D</e>
        <e type="operand">2</e>
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  <region id="38" left="27" top="2259" width="210" height="208" color="#000000" bgColor="#ffffff" fontSize="10">
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  <region id="39" left="243" top="2322" width="510" height="77" border="true" color="#ff0000" bgColor="#ffffff" fontSize="14">
    <text lang="eng">
      <p bold="true">The script is correct as sanity check belowbut result is NOT ! as proved ... Ah !As it looks Maple is the guilty companion.</p>
    </text>
  </region>
  <region id="40" left="18" top="2520" width="1091" height="127" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
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