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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
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      <p bold="true">FindIdx(V,key,col)... applied to project</p>
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        <p>     Unknown Projet Smath Forum     </p>
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        <p>Locate 1rst exact value in vector</p>
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      <p bold="true">All values project</p>
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  <region id="34" left="333" top="945" width="324" height="72" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>sanity √</p>
      </description>
      <input>
        <e type="operand">data</e>
        <e type="operand">207</e>
        <e type="function" preserve="true" args="2">row</e>
        <e type="operand">data</e>
        <e type="operand">208</e>
        <e type="function" preserve="true" args="2">row</e>
        <e type="operand">data</e>
        <e type="operand">209</e>
        <e type="function" preserve="true" args="2">row</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
      <result action="numeric">
        <e type="operand">126.5555</e>
        <e type="operand">246.3009</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">126.5569</e>
        <e type="operand">245.9867</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">126.5557</e>
        <e type="operand">245.6725</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </result>
    </math>
  </region>
  <region id="35" left="180" top="1035" width="138" height="26" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <input>
        <e type="operand">#</e>
        <e type="operand">#</e>
        <e type="operand">#</e>
        <e type="function" args="3">FindIdx</e>
      </input>
    </math>
  </region>
  <region id="36" left="333" top="1035" width="249" height="31" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">key</e>
        <e type="operand">data</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="function" preserve="true" args="1">Max</e>
        <e type="operator" args="2">:</e>
        <e type="operand">col</e>
        <e type="operand">1</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="333" top="1062" width="322" height="28" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">idxkey</e>
        <e type="operand">data</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operand">key</e>
        <e type="operand">col</e>
        <e type="function" args="3">FindIdx</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="38" left="333" top="1089" width="195" height="27" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>row of Max(X)</p>
      </description>
      <input>
        <e type="operand">idxkey</e>
      </input>
      <result action="numeric">
        <e type="operand">208</e>
        <e type="operand">126.5569</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
      </result>
    </math>
  </region>
  <region id="39" left="333" top="1116" width="315" height="34" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math decimalPlaces="1">
      <input>
        <e type="operand">XY</e>
        <e type="operand">data</e>
        <e type="operand">idxkey</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="function" preserve="true" args="2">row</e>
        <e type="operator" args="2">:</e>
      </input>
      <result action="numeric">
        <e type="operand">126.6</e>
        <e type="operand">246</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
      </result>
    </math>
  </region>
  <region id="40" left="18" top="1143" width="126" height="35" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>Length ... Width</p>
      </description>
      <input>
        <e type="operand">H.L</e>
        <e type="operand">16</e>
        <e type="operator" args="2">:</e>
        <e type="operand">H.W</e>
        <e type="operand">10</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="41" left="333" top="1152" width="104" height="26" color="#000000" bgColor="#e1ffff" fontSize="10">
    <math>
      <input>
        <e type="operand">XY</e>
        <e type="operand">XY</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="42" top="1197" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Arrow in there     </p>
      </title>
    </area>
    <region id="43" left="27" top="1215" width="439" height="167" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math decimalPlaces="3">
        <input>
          <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">0</e>
          <e type="operand">0</e>
          <e type="operand">L.v</e>
          <e type="operand">0</e>
          <e type="operand">L.v</e>
          <e type="operand">H.L</e>
          <e type="operator" args="2">-</e>
          <e type="operand">H.W</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">L.v</e>
          <e type="operand">H.L</e>
          <e type="operator" args="2">-</e>
          <e type="operand">H.W</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="1">-</e>
          <e type="operand">L.v</e>
          <e type="operand">0</e>
          <e type="operand">5</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="12">mat</e>
          <e type="operand">α</e>
          <e type="function" args="1">rot</e>
          <e type="operator" args="2">*</e>
          <e type="bracket">(</e>
          <e type="operand">SP.x</e>
          <e type="operand">SP.y</e>
          <e type="operand">SP.x</e>
          <e type="operand">SP.y</e>
          <e type="operand">SP.x</e>
          <e type="operand">SP.y</e>
          <e type="operand">SP.x</e>
          <e type="operand">SP.y</e>
          <e type="operand">SP.x</e>
          <e type="operand">SP.y</e>
          <e type="operand">5</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="12">mat</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="44" left="495" top="1269" width="189" height="49" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math>
        <input>
          <e type="operand">α</e>
          <e type="function" args="1">rot</e>
          <e type="operand">α</e>
          <e type="function" preserve="true" args="1">cos</e>
          <e type="operand">α</e>
          <e type="function" preserve="true" args="1">sin</e>
          <e type="operand">α</e>
          <e type="function" preserve="true" args="1">sin</e>
          <e type="operator" args="1">-</e>
          <e type="operand">α</e>
          <e type="function" preserve="true" args="1">cos</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="6">mat</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="45" top="1377" color="#000000" bgColor="#ebebeb">
      <area terminator="true" />
    </region>
  </region>
  <region id="46" left="18" top="1413" width="265" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Left" lang="eng">
        <p>pilot from command line</p>
      </description>
      <input>
        <e type="operand">arrow</e>
        <e type="operand">0</e>
        <e type="operand">311</e>
        <e type="operand">126.6</e>
        <e type="operand">0</e>
        <e type="operand" style="unit">°</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="4">Arrow</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="47" left="576" top="1422" width="76" height="31" color="#000000" bgColor="#ffff80" fontSize="14">
    <math>
      <input>
        <e type="operand">j</e>
        <e type="operand">600</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="48" left="666" top="1422" width="33" height="35" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABkAAAAbCAYAAACJISRoAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACFSURBVEhL7ZZBDoAgDAT5hv//W7+BbSMJFCJbEU5tMisuJnMimDIwRPSsvg1LxLMTTVv+DWfi5wqcEzRtiRMSFyFxERIXxyQ1pW/RtCUOIpFrglf9BspIQHQp5V1GPqkKHyNJj6YtcY5KbN+iaUuckLiYCwRNW+Jsl7QH7o2Sk1n7g8z5BnNd9j/73D/OAAAAAElFTkSuQmCC</raw>
    </picture>
  </region>
  <region id="49" left="261" top="1449" width="251" height="34" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">xy</e>
        <e type="operand">data</e>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">data</e>
        <e type="operand">j</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="50" left="261" top="1485" width="104" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>data value(s) 'J' explorer</p>
      </description>
      <input>
        <e type="operand">xy</e>
        <e type="operand">xy</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="51" left="576" top="1485" width="161" height="27" color="#000000" bgColor="#ffff80" fontSize="10">
    <math decimalPlaces="2">
      <input>
        <e type="operand">xy</e>
      </input>
      <result action="numeric">
        <e type="operand">80.04</e>
        <e type="operand">122.84</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
      </result>
    </math>
  </region>
  <region id="52" left="18" top="1521" width="240" height="262" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="0.124003478288426" scale_y="0.265812468460149" scale_z="0.423812702193957" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-84" transpose_y="-103" transpose_z="0">
      <input>
        <e type="operand">data</e>
        <e type="operand">arrow</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">400</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">0</e>
        <e type="operand">2</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="6">mat</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand" style="string">+</e>
        <e type="operand">50</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">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">sys</e>
      </input>
    </plot>
  </region>
  <region id="53" left="261" top="1521" width="303" height="264" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <xyplot width="293" height="256" smoothing="false" points="100">
      <propertiessource index="1" sourcetype="PropertyGrid" />
      <grid gridcolor="LightGray" gridpattern="Solid" gridthickness="1" isxgrid="true" isygrid="true" />
      <xaxes xmin="0" xmax="130" xtick="24" numberformat="General" decimalplaces="3" />
      <yaxes ymin="0" ymax="320" ytick="32" numberformat="General" decimalplaces="3" />
      <y2axes isy2axis="false" y2min="-1" y2max="1" y2tick="0.5" numberformat="General" decimalplaces="3" />
      <title2d title="TopUser2000" titlefont="Times New Roman, 14.25pt, style=Bold" titlefontcolor="Black" />
      <xylabel labelfont="Times New Roman, 12pt, style=Bold" labelfontcolor="Black" tickfont="Courier New, 10pt" tickfontcolor="Black" xlabel="X . . . ► " ylabel="◄  . . . data(X)" 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="2" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="Red" linethickness="1" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
        <trace seriesname="" isy2data="false" isvisible="false" plotmethod="Lines" linecolor="Green" linethickness="1" linepattern="Solid" symbolsize="32" symboltype="Plus" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="Black" />
        <trace seriesname="" isy2data="false" isvisible="false" plotmethod="Lines" linecolor="Fuchsia" linethickness="1" linepattern="Solid" symbolsize="24" symboltype="Plus" symbolborderthickness="1" symbolbordercolor="Red" symbolfillcolor="Red" />
      </traces>
      <input>
        <e type="operand">data</e>
        <e type="operand">arrow</e>
        <e type="operand">XY</e>
        <e type="operand">xy</e>
        <e type="operand">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">sys</e>
      </input>
    </xyplot>
  </region>
  <region id="54" left="540" top="1584" width="111" height="31" color="#ffff00" bgColor="#010101" fontSize="12">
    <math>
      <input>
        <e type="operand">126.6</e>
        <e type="operand">246</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="55" left="261" top="1854" width="137" height="28" color="#000000" bgColor="#ffe1e1" fontSize="12">
    <math>
      <input>
        <e type="operand">contour</e>
        <e type="operand">data</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="56" left="423" top="1854" width="127" height="27" color="#000000" bgColor="#ffe1e1" fontSize="10">
    <math>
      <input>
        <e type="operand">XY</e>
        <e type="operand">126.6</e>
        <e type="operand">246</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="57" left="261" top="1890" width="218" height="33" color="#000000" bgColor="#ffe1e1" fontSize="14">
    <math optimize="2" decimalPlaces="15">
      <input>
        <e type="operand">τ</e>
        <e type="operand">1</e>
        <e type="operand">contour</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="58" left="261" top="1926" width="398" height="37" color="#000000" bgColor="#ffe1e1" fontSize="10">
    <math optimize="2" decimalPlaces="15">
      <input>
        <e type="operand">t</e>
        <e type="function" args="1">NX</e>
        <e type="operand">contour</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operand">t</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">t</e>
        <e type="function" args="1">NY</e>
        <e type="operand">contour</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operand">t</e>
        <e type="function" preserve="true" args="2">el</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="59" left="261" top="1971" width="304" height="194" color="#000000" bgColor="#ffe1e1" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="0.0487794193653947" scale_y="0.183448998696332" scale_z="0.0487794193653947" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-123" transpose_y="-77" transpose_z="0" animate="τ" frameRate="50">
      <input>
        <e type="operand">t</e>
        <e type="operand">1</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">path</e>
        <e type="operand">t</e>
        <e type="function" args="1">NX</e>
        <e type="operand">t</e>
        <e type="function" args="1">NY</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operator" args="2">:</e>
        <e type="operand">path</e>
        <e type="operand">path</e>
        <e type="operand">t</e>
        <e type="function" args="1">NX</e>
        <e type="operand">t</e>
        <e type="function" args="1">NY</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="function" preserve="true" args="2">stack</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">XY</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand" style="string">+</e>
        <e type="operand">40</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">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </input>
    </plot>
  </region>
  <region id="60" left="0" top="2232" width="20" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">Σ</e>
      </input>
    </math>
  </region>
  <region id="61" left="0" top="2232" width="404" height="213" border="true" color="#000000" bgColor="#ffffe1" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">data</e>
        <e type="function" args="1">Σ</e>
        <e type="operand" style="string">Finite differences Cumul Integration</e>
        <e type="operand">Y</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">vx</e>
        <e type="operand">data</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
        <e type="operand">vy</e>
        <e type="operand">data</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Y</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">i</e>
        <e type="operand">2</e>
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        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
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        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">vx</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">vx</e>
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        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operand">vy</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">vy</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">Δx</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">*</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="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>
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        <e type="operand">Y</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operand">7</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="9">line</e>
        <e type="operator" args="2">:</e>
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        <e type="operand">Σ</e>
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        <e type="function" args="1">Σ</e>
        <e type="operator" args="2">:</e>
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        <e type="operand">Σ</e>
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    <math optimize="2">
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        <e type="operand">data</e>
        <e type="function" args="1">Deriv</e>
        <e type="operand" style="string">data Derivative BackSubstitution </e>
        <e type="operand">X</e>
        <e type="operand">data</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Y</e>
        <e type="operand">data</e>
        <e type="operand">2</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="2">el</e>
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        <e type="operator" args="2">:</e>
        <e type="operand">i</e>
        <e type="operand">2</e>
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        <e type="operand">deriv</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">0.5</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">-</e>
        <e type="operand">X</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">X</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">/</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">-</e>
        <e type="operand">X</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">X</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">el</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="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">deriv</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">deriv</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">deriv</e>
        <e type="operand">n</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">deriv</e>
        <e type="operand">deriv</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">X</e>
        <e type="operand">1</e>
        <e type="operand">deriv</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operand">10</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="12">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="65" left="450" top="2466" width="121" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">D</e>
        <e type="operand">data</e>
        <e type="function" args="1">Deriv</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="66" left="450" top="2502" width="240" height="158" color="#000000" bgColor="#ffffff" fontSize="10">
    <plot type="2d" render="points" scale_x="0.441197649981866" scale_y="0.0886293811965251" scale_z="0.441197649981866" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="0" transpose_y="0" transpose_z="0">
      <input>
        <e type="operand">D</e>
      </input>
    </plot>
  </region>
  <region id="67" left="0" top="2862" width="577" height="41" color="#000000" bgColor="#e1ffff" fontSize="20">
    <text lang="eng">
      <p bold="true">Scalar piecewise interpolation ...</p>
    </text>
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    <math>
      <input>
        <e type="operand">sub_1</e>
        <e type="operand">data</e>
        <e type="operand">1</e>
        <e type="operand">208</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">mat</e>
        <e type="operand">sub_2</e>
        <e type="operand">data</e>
        <e type="operand">209</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">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">ux</e>
        <e type="operand">sub_1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
        <e type="operand">uy</e>
        <e type="operand">sub_1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">col</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>
        <e type="operand">vx</e>
        <e type="operand">sub_2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
        <e type="operand">vy</e>
        <e type="operand">sub_2</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">col</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>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">ux</e>
        <e type="operand">uy</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="3">ainterp</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">vx</e>
        <e type="operand">vy</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="3">ainterp</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ1</e>
        <e type="operand">1</e>
        <e type="operand">11.64</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">126.6</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">&amp;</e>
        <e type="operand" style="string" />
        <e type="function" preserve="true" args="3">cases</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ2</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="operand">126.6</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">52.5</e>
        <e type="operator" args="2">≥</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">&amp;</e>
        <e type="operand" style="string" />
        <e type="function" preserve="true" args="3">cases</e>
        <e type="operator" args="2">:</e>
        <e type="operand">8</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="10">sys</e>
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      <input>
        <e type="operand">sub_1</e>
        <e type="operand">sub_2</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </input>
    </plot>
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    <math decimalPlaces="0">
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        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ1</e>
        <e type="operator" args="2">*</e>
        <e type="operand">x</e>
        <e type="operand">11.64</e>
        <e type="operand">126.6</e>
        <e type="function" preserve="true" args="4">int</e>
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    <math decimalPlaces="0">
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        <e type="operand">96</e>
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        <e type="function" args="1">f</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">v</e>
        <e type="operand">72</e>
        <e type="operator" args="2">:</e>
        <e type="operand">v</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
      </input>
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        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">72</e>
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        <e type="operand">2</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
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      <description active="true" position="Left" lang="eng">
        <p>Bivalent interpolationwrt [u, v] ...  ► Experiment u ≡ v</p>
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        <e type="operand">x</e>
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        <e type="operator" args="2">*</e>
        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ2</e>
        <e type="operator" args="2">*</e>
        <e type="operand">arrow</e>
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        <e type="operand">u</e>
        <e type="function" args="1">f</e>
        <e type="operand" style="string">+</e>
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        <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">v</e>
        <e type="operand">v</e>
        <e type="function" args="1">Φ</e>
        <e type="operand" style="string">+</e>
        <e type="operand">20</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">5</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="7">sys</e>
      </input>
    </plot>
  </region>
  <region id="74" left="612" top="3186" width="111" height="31" color="#ffff00" bgColor="#010101" fontSize="12">
    <math>
      <input>
        <e type="operand">126.6</e>
        <e type="operand">246</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="75" left="9" top="3366" width="458" height="68" color="#000000" bgColor="#e1ffa4" fontSize="12">
    <text lang="eng">
      <p>Scalar derivative(s) is NOT directly possiblef(x) &amp; Φ(x) are not Smath symbolic.In lieu, transit via infinitesimal analysis.</p>
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  </region>
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    <math>
      <input>
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        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ1</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D1</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operand">h</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="1">-</e>
        <e type="operand">8</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operator" args="2">+</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="operand">8</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operator" args="2">-</e>
        <e type="function" args="1">f</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="operand">h</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">-</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">+</e>
        <e type="operand">12</e>
        <e type="operand">h</e>
        <e type="operator" args="2">*</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">sys</e>
      </input>
    </math>
  </region>
  <region id="78" left="9" top="3537" width="432" height="66" color="#000000" bgColor="#e1ffa4" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">x</e>
        <e type="function" args="1">λ2</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D2</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operand">h</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="1">-</e>
        <e type="operand">8</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operator" args="2">+</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">+</e>
        <e type="operand">8</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operator" args="2">-</e>
        <e type="function" args="1">f</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="operand">h</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">-</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">+</e>
        <e type="operand">12</e>
        <e type="operand">h</e>
        <e type="operator" args="2">*</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">sys</e>
      </input>
    </math>
  </region>
  <region id="79" left="531" top="3573" width="101" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">X</e>
        <e type="operand">109.6653</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="80" left="135" top="3618" width="240" height="158" color="#000000" bgColor="#e1ffa4" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="1.08335928765305" scale_y="0.153887809313777" scale_z="0.166715787476663" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-77" transpose_y="0" transpose_z="0">
      <description active="true" position="Right" lang="eng">
        <p>Infinitesimal 1rst derivative,wrt piecewise project values .</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D1</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D2</e>
        <e type="operand">11.64</e>
        <e type="operand">2</e>
        <e type="operand">11.64</e>
        <e type="operand">2</e>
        <e type="operator" args="1">-</e>
        <e type="operand">2</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="6">mat</e>
        <e type="operand">52.5</e>
        <e type="operand">10</e>
        <e type="operand">52.5</e>
        <e type="operand">5</e>
        <e type="operator" args="1">-</e>
        <e type="operand">2</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="6">mat</e>
        <e type="operand">126.6</e>
        <e type="operand">0</e>
        <e type="operand" style="string">+</e>
        <e type="operand">200</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">X</e>
        <e type="operand">X</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D2</e>
        <e type="operand" style="string">+</e>
        <e type="operand">40</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">6</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="8">sys</e>
      </input>
    </plot>
  </region>
  <region id="81" top="3906" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Golden ratio min/max     </p>
      </title>
    </area>
    <region id="82" left="27" top="3951" width="486" height="547" border="true" color="#000000" bgColor="#ffe1e1" fontSize="10">
      <math optimize="2" decimalPlaces="6">
        <description active="true" position="Top" lang="eng">
          <p>Code adapted from Valery Ochov Mathcad 11</p>
        </description>
        <input>
          <e type="operand">f</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="operand">test</e>
          <e type="operand">TOL</e>
          <e type="function" args="5">Extrema</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="function" args="2">G</e>
          <e type="operand">3</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">b</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">a</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">-</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">5</e>
          <e type="function" preserve="true" args="1">sqrt</e>
          <e type="operator" args="2">*</e>
          <e type="operand">a</e>
          <e type="operand">b</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="operator" args="2">:</e>
          <e type="operand">y1</e>
          <e type="operand">y2</e>
          <e type="operator" args="2">≥</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">max in range</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">y1</e>
          <e type="operand">y2</e>
          <e type="operator" args="2">≤</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">min in range</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">x1</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="function" args="2">G</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y1</e>
          <e type="operand">x1</e>
          <e type="function" args="1">f</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x2</e>
          <e type="operand">b</e>
          <e type="operand">a</e>
          <e type="function" args="2">G</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y2</e>
          <e type="operand">x2</e>
          <e type="function" args="1">f</e>
          <e type="function" preserve="true" args="1">eval</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>
          <e type="operand">iter</e>
          <e type="operand">0</e>
          <e type="operator" args="2">:</e>
          <e type="operand">iter</e>
          <e type="operand">1000</e>
          <e type="operator" args="2">&lt;</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="operator" args="2">-</e>
          <e type="function" preserve="true" args="1">abs</e>
          <e type="operand">TOL</e>
          <e type="operator" args="2">≤</e>
          <e type="operand">break</e>
          <e type="operand">test</e>
          <e type="operand">b</e>
          <e type="operand">x2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x2</e>
          <e type="operand">x1</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y2</e>
          <e type="operand">y1</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x1</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="function" args="2">G</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y1</e>
          <e type="operand">x1</e>
          <e type="function" args="1">f</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">5</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="7">line</e>
          <e type="operand">a</e>
          <e type="operand">x1</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x1</e>
          <e type="operand">x2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y1</e>
          <e type="operand">y2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x2</e>
          <e type="operand">b</e>
          <e type="operand">a</e>
          <e type="function" args="2">G</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">y2</e>
          <e type="operand">x2</e>
          <e type="function" args="1">f</e>
          <e type="function" preserve="true" args="1">eval</e>
          <e type="operator" args="2">:</e>
          <e type="operand">5</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="7">line</e>
          <e type="function" preserve="true" args="3">if</e>
          <e type="operand">iter</e>
          <e type="operand">iter</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">if</e>
          <e type="function" preserve="true" args="2">while</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">7</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="9">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="83" left="549" top="4410" width="55" height="62" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="operator" args="2">+</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">iter</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="4">mat</e>
        </input>
      </math>
    </region>
    <region id="84" top="4572" color="#000000" bgColor="#ffffff">
      <area terminator="true" />
    </region>
  </region>
  <region id="85" left="162" top="4599" width="206" height="49" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">y1</e>
        <e type="operand">y2</e>
        <e type="operator" args="2">≥</e>
        <e type="bracket">(</e>
        <e type="operand" style="string">max in range</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">y1</e>
        <e type="operand">y2</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand" style="string">min in range</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </input>
    </math>
  </region>
  <region id="86" left="396" top="4608" width="184" height="28" color="#000000" bgColor="#ffff80" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="operand">h</e>
        <e type="operand">f</e>
        <e type="function" args="3">D2</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="87" left="648" top="4608" width="72" height="33" color="#000000" bgColor="#ffff80" fontSize="10">
    <math decimalPlaces="9">
      <input>
        <e type="operand">ε</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>
      </input>
    </math>
  </region>
  <region id="88" left="396" top="4653" width="348" height="28" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">X</e>
        <e type="operand">f</e>
        <e type="operand">64</e>
        <e type="operand">126</e>
        <e type="operand">y1</e>
        <e type="operand">y2</e>
        <e type="operator" args="2">≤</e>
        <e type="operand">ε</e>
        <e type="function" args="5">Extrema</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="2">round</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="89" left="396" top="4689" width="111" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math trailingZeros="true">
      <input>
        <e type="operand">X</e>
      </input>
      <result action="numeric">
        <e type="operand">109.6653</e>
      </result>
    </math>
  </region>
  <region id="90" left="396" top="4716" width="274" height="28" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">ux</e>
        <e type="operand">uy</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="3">ainterp</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="2">round</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="91" left="396" top="4752" width="131" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math decimalPlaces="6">
      <input>
        <e type="operand">X</e>
        <e type="function" args="1">f</e>
      </input>
      <result action="numeric">
        <e type="operand">274.7455</e>
      </result>
    </math>
  </region>
  <region id="92" left="441" top="4815" width="164" height="31" color="#000000" bgColor="#ebebeb" fontSize="14">
    <text lang="eng">
      <p bold="true">jmG: 20230218</p>
    </text>
  </region>
  <region id="93" left="171" top="4824" width="264" height="19" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">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</raw>
    </picture>
  </region>
  <region id="94" top="4860" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     hatch, scale     </p>
      </title>
    </area>
    <region id="95" left="27" top="4878" width="406" height="55" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math exponentialThreshold="3">
        <description active="true" position="Top" lang="eng">
          <p>You need that one for scaling grayscale image</p>
        </description>
        <input>
          <e type="operand">M</e>
          <e type="operand">lo</e>
          <e type="operand">hi</e>
          <e type="function" args="3">Scale</e>
          <e type="operand">hi</e>
          <e type="operand">lo</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">lo</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="96" left="27" top="4968" width="449" height="274" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math>
        <description active="true" position="Top" lang="ger">
          <p>Erzeugt eine Matrix für die Darstellung vertikaler Linien zwischen den Funktionen f(x) und g(x) im Bereich von x1 bis x2 mit 2*n Linien.</p>
        </description>
        <description active="true" position="Top" lang="eng">
          <p>Generates a matrix for 2*N vertical lines (hatching) between functions f(x) and g(x) in x-range from x1 to x2</p>
        </description>
        <input>
          <e type="operand">f</e>
          <e type="operand">g</e>
          <e type="operand">x.1</e>
          <e type="operand">x.2</e>
          <e type="operand">N</e>
          <e type="function" args="5">hatch</e>
          <e type="operand">dx</e>
          <e type="operand">x.2</e>
          <e type="operand">x.1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">N</e>
          <e type="operator" args="2">/</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">:</e>
          <e type="operand">h</e>
          <e type="operand">x.1</e>
          <e type="operand">x.1</e>
          <e type="function" args="1">f</e>
          <e type="operand">x.1</e>
          <e type="operand">x.1</e>
          <e type="function" args="1">g</e>
          <e type="operand">2</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="6">mat</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x</e>
          <e type="operand">x.1</e>
          <e type="operand">x.2</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">-</e>
          <e type="operand">x.1</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">+</e>
          <e type="function" preserve="true" args="3">range</e>
          <e type="operand">h</e>
          <e type="operand">h</e>
          <e type="operand">x</e>
          <e type="operand">dx</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">dx</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">g</e>
          <e type="operand">x</e>
          <e type="operand">dx</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">dx</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">f</e>
          <e type="operand">x</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">+</e>
          <e type="operand">x</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">f</e>
          <e type="operand">x</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">+</e>
          <e type="operand">x</e>
          <e type="operand">dx</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">g</e>
          <e type="operand">4</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="10">mat</e>
          <e type="function" preserve="true" args="2">stack</e>
          <e type="operator" args="2">:</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">h</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="97" top="5301" color="#000000" bgColor="#ebebeb">
      <area terminator="true" />
    </region>
  </region>
  <region id="98" left="27" top="5337" width="313" height="89" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">ux</e>
        <e type="operand">uy</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="3">ainterp</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">vx</e>
        <e type="operand">vy</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="3">ainterp</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">g</e>
        <e type="operand">246</e>
        <e type="operator" args="2">:</e>
        <e type="operand">hatch_2</e>
        <e type="operand">f</e>
        <e type="operand">g</e>
        <e type="operand">11.64</e>
        <e type="operand">126</e>
        <e type="operand">20</e>
        <e type="function" args="5">hatch</e>
        <e type="operator" args="2">:</e>
        <e type="operand">4</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="6">sys</e>
      </input>
    </math>
  </region>
  <region id="99" left="27" top="5436" width="240" height="158" color="#000000" bgColor="#ffffff" fontSize="10">
    <plot type="2d" render="lines" scale_x="0.0399104340262321" scale_y="0.141311119663708" scale_z="0.0399104340262321" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-64" transpose_y="-54" transpose_z="0">
      <description active="true" position="Right" lang="eng">
        <p>(X,f(X),"+",40,"black"@ 1rst derivative 'Min'</p>
      </description>
      <input>
        <e type="operand">sub_1</e>
        <e type="operand">sub_2</e>
        <e type="operand">x</e>
        <e type="function" args="1">g</e>
        <e type="operand">hatch_2</e>
        <e type="operand">X</e>
        <e type="operand">X</e>
        <e type="function" args="1">f</e>
        <e type="operand" style="string">+</e>
        <e type="operand">40</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">5</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="7">sys</e>
      </input>
    </plot>
  </region>
  <region id="100" top="5697" color="#000000" bgColor="#c0c0c0">
    <area single="true" collapsed="true" />
  </region>
</regions>