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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
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      <p bold="true">Circle complex code [0 .. 1]</p>
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        <p>     Complex circles     </p>
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        <e type="operand">0.2</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
  </region>
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    <text lang="eng">
      <p bold="true">Slower version ... otherwise more convenient</p>
    </text>
  </region>
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        <e type="operator" args="2">:</e>
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    </math>
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        <e type="operand">H</e>
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        <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="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
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        <e type="function" preserve="true" args="4">mat</e>
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        <e type="operand">1</e>
        <e type="operand">N</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="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">dx</e>
        <e type="operand">i</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">U</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>
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    </math>
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    <math optimize="2" decimalPlaces="15">
      <description active="false" position="Right" lang="eng">
        <p />
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">ρ</e>
        <e type="operand">i</e>
        <e type="operand">2</e>
        <e type="operator" args="2">*</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">x</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="1">exp</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">ρ</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">xc</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">yc</e>
        <e type="operand">0</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>
        <e type="operand">L</e>
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        <e type="operator" args="1">-</e>
        <e type="operator" args="2">:</e>
        <e type="operand">H</e>
        <e type="operand">0.375</e>
        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">100</e>
        <e type="operator" args="2">:</e>
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        <e type="operand">xc</e>
        <e type="operator" args="2">+</e>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="function" preserve="true" args="1">vectorize</e>
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        <e type="function" preserve="true" args="2">augment</e>
        <e type="operator" args="2">:</e>
        <e type="operand">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">line</e>
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        <e type="operand">o</e>
        <e type="function" preserve="true" args="1">rows</e>
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      <result action="numeric">
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        <e type="function" preserve="true" args="1">time</e>
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        <e type="operator" args="2">-</e>
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        <e type="operand">0.34</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
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    </math>
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        <e type="function" preserve="true" args="2">row</e>
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        <e type="function" preserve="true" args="4">mat</e>
      </result>
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        <e type="operand">C</e>
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        <e type="function" preserve="true" args="2">row</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
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        <e type="operand">2</e>
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        <e type="function" preserve="true" args="4">mat</e>
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    <text lang="eng">
      <p bold="true">Circle closed by parametric X_Y construction</p>
    </text>
  </region>
  <region id="26" top="1476" color="#000000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Arrow module ... collapse in Utilities  top of document     </p>
      </title>
    </area>
    <region id="27" left="36" top="1494" width="511" height="167" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math decimalPlaces="3">
        <input>
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          <e type="operand">SP.x</e>
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          <e type="operand">SP.x</e>
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      <area terminator="true" />
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        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="30" left="306" top="1701" width="396" height="72" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
    <text lang="eng">
      <p>The  Arrow(SP.x,SP.y,L.v,α) fetches HL, HWfrom wherever it finds in document. In some instance(s), such global construction may create "shadow in context" ... to be doctored.  </p>
    </text>
  </region>
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      <description active="true" position="Right" lang="eng">
        <p>Similat constructionMCD ≡ global definition</p>
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      <description active="true" position="Right" lang="eng">
        <p>Plot dependent argument</p>
      </description>
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        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">L.v</e>
        <e type="operand">2</e>
        <e type="operand">r</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operator" args="2">:</e>
        <e type="operand">α</e>
        <e type="operand">135</e>
        <e type="operand" style="unit">°</e>
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        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="6">mat</e>
      </input>
    </math>
  </region>
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    <xyplot width="278" height="265" smoothing="false" points="100">
      <propertiessource index="1" sourcetype="PropertyGrid" />
      <grid gridcolor="LightGray" gridpattern="Solid" gridthickness="1" isxgrid="true" isygrid="true" />
      <xaxes xmin="-1" xmax="1" xtick="0.5" numberformat="General" decimalplaces="3" />
      <yaxes ymin="-1" ymax="1" ytick="0.5" numberformat="General" decimalplaces="3" />
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        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="Blue" linethickness="1" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
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        <e type="operand">f</e>
        <e type="operand">q</e>
        <e type="operand">SP.x</e>
        <e type="operand">SP.y</e>
        <e type="operand">L.v</e>
        <e type="operand">α</e>
        <e type="function" args="4">Arrow</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
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  <region id="36" left="18" top="1998" width="198" height="31" color="#000000" bgColor="#80ffff" fontSize="14">
    <text lang="eng">
      <p bold="true">circle/hyperbola</p>
    </text>
  </region>
  <region id="37" left="18" top="2043" width="157" height="99" color="#000000" bgColor="#ffffff" fontSize="10">
    <math decimalPlaces="3">
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        <e type="operand">x</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="1">±</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">f2</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">0.5</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="1">±</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">f3</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
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        <e type="operator" args="2">:</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </math>
  </region>
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    <math decimalPlaces="6">
      <description active="true" position="Top" lang="eng">
        <p>Dichotomy intersection as a function</p>
      </description>
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        <e type="operand">a</e>
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        <e type="function" args="4">D</e>
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        <e type="operand">b</e>
        <e type="operand">a</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
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        <e type="operator" args="2">:</e>
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        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
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        <e type="function" preserve="true" args="1">abs</e>
        <e type="operand">ε</e>
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        <e type="function" args="1">Φ</e>
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        <e type="operator" args="2">:</e>
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        <e type="operand">xn</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">if</e>
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        <e type="operand">a</e>
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        <e type="bracket">(</e>
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        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">n</e>
        <e type="operand">n</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="2">while</e>
        <e type="operand">xn</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>
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  <region id="39" left="387" top="2169" width="80" height="33" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math decimalPlaces="6">
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        <e type="operand">10</e>
        <e type="operand">12</e>
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        <e type="operator" args="2">^</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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    <math decimalPlaces="3">
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        <e type="operand">xx</e>
        <e type="function" args="1">f1</e>
        <e type="operand">xx</e>
        <e type="function" args="1">f2</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">:</e>
        <e type="operand">xx</e>
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        <e type="operand">xx</e>
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        <e type="operand">xx</e>
        <e type="function" args="1">f3</e>
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        <e type="operand">2</e>
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        <e type="operand">0.866</e>
        <e type="operand" style="string">.</e>
        <e type="operand">14</e>
        <e type="operand" style="string">black</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
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        <e type="operand">0.866</e>
        <e type="operator" args="1">-</e>
        <e type="operand" style="string">.</e>
        <e type="operand">14</e>
        <e type="operand" style="string">black</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
        <e type="operand">0.866</e>
        <e type="operand">0.5</e>
        <e type="operand" style="string">.</e>
        <e type="operand">14</e>
        <e type="operand" style="string">black</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
        <e type="operand">0.866</e>
        <e type="operand">0.5</e>
        <e type="operator" args="1">-</e>
        <e type="operand" style="string">.</e>
        <e type="operand">14</e>
        <e type="operand" style="string">black</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
        <e type="operand">7</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="9">sys</e>
      </input>
    </plot>
  </region>
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        <e type="operand">roots</e>
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        <e type="operand">0</e>
        <e type="operand">1</e>
        <e type="operand">ε</e>
        <e type="function" args="4">D</e>
        <e type="operand">xx</e>
        <e type="function" args="1">φ</e>
        <e type="operand">0.5</e>
        <e type="operand">1</e>
        <e type="operand">ε</e>
        <e type="function" args="4">D</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operator" args="2">:</e>
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      <result action="numeric">
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        <e type="operand">0.75</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
      </result>
    </math>
  </region>
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    <math decimalPlaces="6">
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        <e type="operand">roots</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" args="1">f2</e>
      </input>
      <result action="numeric">
        <e type="operand">0.866025</e>
        <e type="operand">0.866025</e>
        <e type="operator" args="1">-</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </result>
    </math>
  </region>
  <region id="44" left="9" top="2637" width="279" height="31" color="#000000" bgColor="#80ffff" fontSize="14">
    <text lang="eng">
      <p bold="true">Circle &amp; roots_of_Unity</p>
    </text>
  </region>
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        <e type="operand">char</e>
        <e type="operand">size</e>
        <e type="operand">clr</e>
        <e type="function" args="4">plot</e>
        <e type="operand">k</e>
        <e type="operand">1</e>
        <e type="operand">data</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">r3</e>
        <e type="operand">k</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">char</e>
        <e type="operator" args="2">:</e>
        <e type="operand">r4</e>
        <e type="operand">k</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">size</e>
        <e type="operator" args="2">:</e>
        <e type="operand">r5</e>
        <e type="operand">k</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">clr</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>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">data</e>
        <e type="operand">r3</e>
        <e type="operand">r4</e>
        <e type="operand">r5</e>
        <e type="function" preserve="true" args="4">augment</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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    <math decimalPlaces="3">
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        <e type="function" args="1">f</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
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        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="1">±</e>
        <e type="operator" args="2">:</e>
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    </math>
  </region>
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      <input>
        <e type="operand">n</e>
        <e type="operand">12</e>
        <e type="operator" args="2">:</e>
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        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="operand">0</e>
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        <e type="operand">Uroot</e>
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        <e type="operand">14</e>
        <e type="operand" style="string">black</e>
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        <e type="operand">0.86602540378444</e>
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    <math decimalPlaces="6">
      <description active="true" position="Top" lang="eng">
        <p>Circle definition</p>
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    </math>
  </region>
  <region id="56" left="189" top="3222" width="522" height="31" color="#000000" bgColor="#80ffff" fontSize="14">
    <text lang="eng">
      <p bold="true">rk Circle/ellipse ... export to machine tool</p>
    </text>
  </region>
  <region id="57" left="315" top="3249" width="77" height="63" color="#000000" bgColor="#ffffff" fontSize="10">
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        <e type="operand">π</e>
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        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">200</e>
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        <p>ellipse</p>
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        <e type="operand">ε</e>
        <e type="operand">1.5</e>
        <e type="operator" args="2">:</e>
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      <description active="false" position="Top" lang="eng">
        <p>Either 'rkfixed' or 'Rkadapt'</p>
      </description>
      <input>
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        <e type="operand">IC</e>
        <e type="operand">t0</e>
        <e type="operand">t1</e>
        <e type="operand">N</e>
        <e type="operand">t</e>
        <e type="operand">u</e>
        <e type="function" args="2">D</e>
        <e type="function" preserve="true" args="5">dn_GearsBDF</e>
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        <e type="operand">s</e>
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        <e type="operator" args="2">:</e>
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        <e type="operand">ε</e>
        <e type="operand">s</e>
        <e type="operand">2</e>
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        <e type="operand">s</e>
        <e type="operand">3</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
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        <e type="function" preserve="true" args="5">line</e>
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    <math decimalPlaces="6">
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        <e type="operand">x</e>
        <e type="operand">X</e>
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        <e type="operator" args="2">:</e>
        <e type="operand">V</e>
        <e type="operand">x</e>
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        <e type="operand" style="string">.</e>
        <e type="operand">14</e>
        <e type="operand" style="string">red</e>
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        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
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        <e type="operand">V</e>
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    <math decimalPlaces="6">
      <description active="true" position="Top" lang="eng">
        <p>Circle definition</p>
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        <e type="operand">u</e>
        <e type="function" args="2">D</e>
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        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">u</e>
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        <e type="operator" args="2">:</e>
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      <input>
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        <e type="operand">π</e>
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        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
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        <e type="operand">t1</e>
        <e type="operand">n</e>
        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">1000</e>
        <e type="operator" args="2">:</e>
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    </math>
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    <math decimalPlaces="6">
      <description active="false" position="Top" lang="eng">
        <p>Either 'rkfixed' or 'Rkadapt'</p>
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      <input>
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        <e type="operand">IC</e>
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        <e type="operand">t1</e>
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        <e type="operand">t</e>
        <e type="operand">u</e>
        <e type="function" args="2">D</e>
        <e type="function" preserve="true" args="5">dn_GearsBDF</e>
        <e type="operator" args="2">:</e>
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        <e type="operator" args="2">:</e>
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        <e type="operator" args="2">:</e>
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        <e type="function" preserve="true" args="2">augment</e>
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        <e type="operand" style="string">2*π rad/s</e>
        <e type="operand" style="string">1 Hz/s</e>
        <e type="operator" args="2">≡</e>
        <e type="operand" style="string">n rev</e>
        <e type="operand" style="string">n Hz</e>
        <e type="operator" args="2">≡</e>
        <e type="operand" style="string">n Hz/s</e>
        <e type="operand" style="string">n 2*π rad/s </e>
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        <e type="operand">4</e>
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        <e type="operand">Y</e>
        <e type="function" preserve="true" args="2">augment</e>
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      </input>
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        <e type="operand">π</e>
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        <e type="operand">π</e>
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        <e type="operand">0.25</e>
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        <e type="operand">2</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="6">mat</e>
        <e type="operand">0</e>
        <e type="operand">1.5</e>
        <e type="operand" style="string">1Hz</e>
        <e type="operand">12</e>
        <e type="operand" style="string">red</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
        <e type="operand">28</e>
        <e type="operand">1.5</e>
        <e type="operand" style="string">5Hz</e>
        <e type="operand">12</e>
        <e type="operand" style="string">red</e>
        <e type="operand">1</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="7">mat</e>
        <e type="operand">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">sys</e>
      </input>
    </plot>
  </region>
</regions>