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      <p>'p' zoom cirles system</p>
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        <e type="operand">μ</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Circle_1</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Circle_5</e>
        <e type="operand">μ</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Circle_1</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Circle_6</e>
        <e type="operand">μ</e>
        <e type="operand">6</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">Circle_1</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">6</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="8">sys</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="21" left="486" top="756" width="28" height="33" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABQAAAAZCAYAAAAxFw7TAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAABzSURBVEhL7ZRRCsAgDEN7jd3/br2Ga5hkrtTh5j46UHiJqRAGE6VMLFWtu3PVQliM6hbOe0AZPAIL5ndAGTyfFqIsR+Hxp4IDsxxfaMrAoVmuQlze9gJPF14GZrkLW1bhEFAGzyocAsrg+UfhY3ov9juk7GcGz0okDUugAAAAAElFTkSuQmCC</raw>
    </picture>
  </region>
  <region id="22" left="522" top="765" width="160" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <text lang="eng">
      <p>set radius circles</p>
    </text>
  </region>
  <region id="23" left="45" top="801" width="614" height="31" color="#0000ff" bgColor="#ebebeb" fontSize="14">
    <text lang="eng">
      <p bold="true">============ Unary ▼ radius /radials ===============</p>
    </text>
  </region>
  <region id="24" left="117" top="837" width="33" height="33" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACASURBVEhL7dNBDoQgFANQruH97+Y1sFW/aSwuBGRhSHwdUiZ2ZcoZz8eQXvaG9FIl/LRA8k08PYs/tkB6qeaIQnqp5ohCeqnmiEIWSrYi+lrIQslWRF8LeRzWddldF7w5RVeD78TJL6jXCCG9pCEjNEfukF6GISP0nxHSj/S9lDdOQxboEuxS7AAAAABJRU5ErkJggg==</raw>
    </picture>
  </region>
  <region id="25" left="162" top="837" width="136" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <text lang="eng">
      <p>set 'N' radials</p>
    </text>
  </region>
  <region id="26" left="450" top="837" width="33" height="33" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACASURBVEhL7dNBDoQgFANQruH97+Y1sFW/aSwuBGRhSHwdUiZ2ZcoZz8eQXvaG9FIl/LRA8k08PYs/tkB6qeaIQnqp5ohCeqnmiEIWSrYi+lrIQslWRF8LeRzWddldF7w5RVeD78TJL6jXCCG9pCEjNEfukF6GISP0nxHSj/S9lDdOQxboEuxS7AAAAABJRU5ErkJggg==</raw>
    </picture>
  </region>
  <region id="27" left="486" top="837" width="60" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>size radials</p>
      </description>
      <input>
        <e type="operand">s</e>
        <e type="operand">1.5</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="28" left="45" top="864" width="167" height="85" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">r</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">12</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">step</e>
        <e type="operand">0</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="operand">N</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="3">range</e>
        <e type="operator" args="2">:</e>
        <e type="operand">r</e>
        <e type="operand">θ</e>
        <e type="function" args="2">f</e>
        <e type="operand">r</e>
        <e type="operand">i</e>
        <e type="operand">θ</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </math>
  </region>
  <region id="29" left="225" top="864" width="365" height="84" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">step</e>
        <e type="function" args="1">real</e>
        <e type="operand">r</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">Re</e>
        <e type="operator" args="2">:</e>
        <e type="operand">step</e>
        <e type="function" args="1">imag</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">Im</e>
        <e type="operator" args="2">:</e>
        <e type="operand">X</e>
        <e type="operand">step</e>
        <e type="function" args="1">real</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operand">s</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Y</e>
        <e type="operand">step</e>
        <e type="function" args="1">imag</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operand">s</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="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>
      </input>
    </math>
  </region>
  <region id="30" left="630" top="864" width="133" height="82" color="#000000" bgColor="#ebebeb">
    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Blue">From here . . .</span></strong></span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Red">1.</span></strong> Set  <strong><span style="color: Red">N  </span></strong>radials</span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Red">2.</span></strong> Size  <span style="color: Red">s </span> radials</span></span></div></span>]]></writer>
  </region>
  <region id="31" left="225" top="945" width="213" height="42" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p> ◄  Departure angle</p>
      </description>
      <input>
        <e type="operand">r</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" preserve="true" args="1">arg</e>
      </input>
      <contract>
        <e type="operand" style="unit">°</e>
      </contract>
      <result action="numeric">
        <e type="operand">30</e>
      </result>
    </math>
  </region>
  <region id="32" top="990" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Radial Stem     </p>
      </title>
    </area>
    <region id="33" left="27" top="1026" width="314" height="198" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math>
        <description active="true" position="Top" lang="eng">
          <p>Core component of the stem style</p>
        </description>
        <input>
          <e type="operand">P</e>
          <e type="operand">v</e>
          <e type="function" args="2">replicate</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">v</e>
          <e type="function" preserve="true" args="1">length</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">P</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">1</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">continue</e>
          <e type="operand">j</e>
          <e type="operand">1</e>
          <e type="operand">P</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">T</e>
          <e type="operand">k</e>
          <e type="operand">j</e>
          <e type="operator" args="2">+</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">v</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operator" args="2">:</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">k</e>
          <e type="operand">k</e>
          <e type="operand">P</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">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="3">for</e>
          <e type="operand">T</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="5">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="34" left="423" top="1026" width="357" height="267" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math decimalPlaces="6">
        <description active="true" position="Top" lang="eng">
          <p>Stem construction</p>
        </description>
        <input>
          <e type="operand">vy</e>
          <e type="function" args="1">stem</e>
          <e type="operand">N</e>
          <e type="operand">0</e>
          <e type="operator" args="2">:</e>
          <e type="operand">N</e>
          <e type="operand">vy</e>
          <e type="function" preserve="true" args="1">length</e>
          <e type="operator" args="2">:</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">q</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">3</e>
          <e type="operator" args="2">:</e>
          <e type="operand">q</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="4">line</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">1</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="3">line</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">v</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">i</e>
          <e type="operator" args="2">:</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">S</e>
          <e type="operand">3</e>
          <e type="operand">i</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="function" preserve="true" args="3">for</e>
          <e type="operand">u</e>
          <e type="operand">q</e>
          <e type="operand">v</e>
          <e type="function" args="2">replicate</e>
          <e type="operator" args="2">:</e>
          <e type="operand">V</e>
          <e type="operand">u</e>
          <e type="operand">S</e>
          <e type="function" preserve="true" args="2">augment</e>
          <e type="operator" args="2">:</e>
          <e type="operand">V</e>
          <e type="operand">V</e>
          <e type="operand">3</e>
          <e type="operand">V</e>
          <e type="function" preserve="true" args="1">rows</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="5">submatrix</e>
          <e type="operator" args="2">:</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="10">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="35" left="27" top="1260" width="395" height="53" color="#000000" bgColor="#ffe1e1" fontSize="10">
      <math decimalPlaces="3">
        <input>
          <e type="operand">radial</e>
          <e type="operand">X</e>
          <e type="function" args="1">stem</e>
          <e type="operand">Y</e>
          <e type="function" args="1">stem</e>
          <e type="function" preserve="true" args="2">augment</e>
          <e type="operator" args="2">:</e>
          <e type="operand">radial</e>
          <e type="operand">radial</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="2">col</e>
          <e type="operand">radial</e>
          <e type="operand">4</e>
          <e type="function" preserve="true" args="2">col</e>
          <e type="function" preserve="true" args="2">augment</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="36" top="1368" color="#000000" bgColor="#ffffff">
      <area terminator="true" />
    </region>
  </region>
  <region id="37" left="45" top="1404" width="620" height="31" color="#0000ff" bgColor="#ebebeb" fontSize="14">
    <text lang="eng">
      <p bold="true">============ Unary ▲  radius /radials ===============</p>
    </text>
  </region>
  <region id="38" left="54" top="1440" width="60" height="24" color="#000000" bgColor="#ffe1e1" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>wrt...wave length</p>
      </description>
      <input>
        <e type="operand">L</e>
        <e type="operand">1.5</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="39" left="342" top="1440" width="272" height="27" color="#000000" bgColor="#ffe1e1" fontSize="10">
    <math>
      <input>
        <e type="operand">Experiment</e>
        <e type="operand">1</e>
        <e type="operand">1.25</e>
        <e type="operand">1.5</e>
        <e type="operand">1.75</e>
        <e type="operand">2</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="operand">6</e>
        <e type="function" preserve="true" args="8">mat</e>
        <e type="operator" args="2">≡</e>
      </input>
    </math>
  </region>
  <region id="40" top="1485" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Dipole System     </p>
      </title>
    </area>
    <region id="41" left="279" top="1503" width="58" height="24" color="#000000" bgColor="#ffe1e1" fontSize="10">
      <math>
        <input>
          <e type="operand">β</e>
          <e type="operand">2</e>
          <e type="operand">π</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="42" left="54" top="1539" width="373" height="81" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math>
        <input>
          <e type="operand">θ</e>
          <e type="function" args="1">f</e>
          <e type="operand">β</e>
          <e type="operand">L</e>
          <e type="operator" args="2">*</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="operand">θ</e>
          <e type="function" preserve="true" args="1">cos</e>
          <e type="operator" args="2">*</e>
          <e type="function" preserve="true" args="1">cos</e>
          <e type="operand">β</e>
          <e type="operand">L</e>
          <e type="operator" args="2">*</e>
          <e type="operand">2</e>
          <e type="operator" args="2">/</e>
          <e type="function" preserve="true" args="1">cos</e>
          <e type="operator" args="2">-</e>
          <e type="operand">θ</e>
          <e type="function" preserve="true" args="1">sin</e>
          <e type="operator" args="2">/</e>
          <e type="operand">θ</e>
          <e type="function" preserve="true" args="1">sin</e>
          <e type="operand">0</e>
          <e type="operator" args="2">≠</e>
          <e type="operand">0</e>
          <e type="function" preserve="true" args="3">cases</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="43" left="486" top="1557" width="125" height="41" color="#000000" bgColor="#ffffff" fontSize="10">
      <math decimalPlaces="15">
        <input>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">axes</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="44" left="54" top="1629" width="85" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">npts</e>
          <e type="operand">359</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="45" left="180" top="1629" width="85" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">θ.start</e>
          <e type="operand">0</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="46" left="288" top="1629" width="85" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">θ.end</e>
          <e type="operand">360</e>
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<div><span style="font-family: 'Times New Roman'"><span style="font-size: 20pt"><strong><span style="color: Red">Rotate a Coplanar System . . .</span></strong></span></span></div></span>]]></writer>
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        <p>'ε' 1 ≡ coplanar circles'ε' ≠ 1 coplanar ellip's</p>
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        <p>The population of the '0' padding sets the size of the coplanarCircles  have  2*pad  points</p>
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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">Y</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">i</e>
        <e type="operand">2</e>
        <e type="operand">n</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">Y</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">Y</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="70" left="270" top="2637" width="228" height="30" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2" fractionType="auto" decimalPlaces="6">
      <input>
        <e type="operand">U</e>
        <e type="operand">Y</e>
        <e type="function" args="1">ifft</e>
        <e type="function" preserve="true" args="1">mat2sys</e>
        <e type="function" preserve="true" args="1">sys2mat</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="71" left="27" top="2664" width="68" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <math decimalPlaces="6">
      <input>
        <e type="operand">pad</e>
        <e type="operand">50</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="72" left="270" top="2664" width="222" height="57" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2" decimalPlaces="6">
      <input>
        <e type="operand">a</e>
        <e type="operand">U</e>
        <e type="function" preserve="true" args="1">Re</e>
        <e type="function" preserve="true" args="1">mat2sys</e>
        <e type="function" preserve="true" args="1">sys2mat</e>
        <e type="operator" args="2">:</e>
        <e type="operand">b</e>
        <e type="operand">U</e>
        <e type="function" preserve="true" args="1">Im</e>
        <e type="function" preserve="true" args="1">mat2sys</e>
        <e type="function" preserve="true" args="1">sys2mat</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>
      </input>
    </math>
  </region>
  <region id="73" left="504" top="2664" width="235" height="51" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2" decimalPlaces="6">
      <input>
        <e type="operand">ab</e>
        <e type="operand">ø</e>
        <e type="operand">a</e>
        <e type="operator" args="2">*</e>
        <e type="operand">ø</e>
        <e type="operand">b</e>
        <e type="operator" args="2">*</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operator" args="2">:</e>
        <e type="operand">ba</e>
        <e type="operand">ø</e>
        <e type="operator" args="1">-</e>
        <e type="bracket">(</e>
        <e type="operand">a</e>
        <e type="operator" args="2">*</e>
        <e type="operand">ø</e>
        <e type="operator" args="1">-</e>
        <e type="bracket">(</e>
        <e type="operand">b</e>
        <e type="operator" args="2">*</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="2">augment</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>
      </input>
    </math>
  </region>
  <region id="74" left="270" top="2727" width="122" height="49" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <input>
        <e type="operand">ab</e>
        <e type="operand">ab</e>
        <e type="operand">θ</e>
        <e type="function" args="1">rot</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">ba</e>
        <e type="operand">ba</e>
        <e type="operand">θ</e>
        <e type="function" args="1">rot</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>
      </input>
    </math>
  </region>
  <region id="75" left="270" top="2772" width="210" height="208" color="#000000" bgColor="#ebebeb" fontSize="10" showInputData="False">
    <xyplot width="200" height="200" smoothing="false" points="100">
      <propertiessource index="1" sourcetype="PropertyGrid" />
      <grid gridcolor="LightGray" gridpattern="Solid" gridthickness="1" isxgrid="true" isygrid="true" />
      <xaxes xmin="-1.5" xmax="1.5" xtick="0.5" numberformat="General" decimalplaces="3" />
      <yaxes ymin="-1.5" ymax="1.5" ytick="0.5" numberformat="General" decimalplaces="3" />
      <y2axes isy2axis="false" y2min="-1" y2max="1" y2tick="0.5" numberformat="General" decimalplaces="3" />
      <title2d title="Coplanar circles" titlefont="Times New Roman, 14.25pt, style=Bold" titlefontcolor="Black" />
      <xylabel labelfont="Arial, 10pt" labelfontcolor="Black" tickfont="Courier New, 10pt" tickfontcolor="Black" xlabel="x" ylabel="y" y2label="y2" />
      <legend isbordervisible="true" islegendvisible="false" legendbackcolor="White" legendbordercolor="Black" legendfont="Arial, 8pt" legendposition="NorthEast" textcolor="Black" />
      <traces>
        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="Blue" linethickness="1" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="Red" 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="2" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
        <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" linecolor="DimGray" linethickness="1" linepattern="Solid" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
      </traces>
      <input>
        <e type="operand">radial</e>
        <e type="operand">ab</e>
        <e type="operand">ba</e>
        <e type="operand">C</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="2">el</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="76" left="171" top="2826" width="74" height="89" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <input>
        <e type="operand">radial</e>
        <e type="operand">ab</e>
        <e type="operand">ba</e>
        <e type="operand">C</e>
        <e type="operand">5</e>
        <e type="function" preserve="true" args="2">el</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="77" left="180" top="3024" width="436" height="76" color="#000000" bgColor="#ebebeb">
    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 20pt"><strong>oblate/prolate<span style="color: Red"> Elliptic radial system</span></strong></span></span></div>
<div style="text-align: center"><span style="font-family: 'Times New Roman'"><span style="font-size: 20pt"><strong>set via 'r' in f(r,θ)</strong></span></span></div></span>]]></writer>
  </region>
  <region id="78" left="81" top="3114" width="660" height="31" color="#0000ff" bgColor="#ebebeb" fontSize="14">
    <text lang="eng">
      <p bold="true">============ Elliptic ▼ radius / radials ===============</p>
    </text>
  </region>
  <region id="79" left="153" top="3150" width="33" height="33" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACASURBVEhL7dNBDoQgFANQruH97+Y1sFW/aSwuBGRhSHwdUiZ2ZcoZz8eQXvaG9FIl/LRA8k08PYs/tkB6qeaIQnqp5ohCeqnmiEIWSrYi+lrIQslWRF8LeRzWddldF7w5RVeD78TJL6jXCCG9pCEjNEfukF6GISP0nxHSj/S9lDdOQxboEuxS7AAAAABJRU5ErkJggg==</raw>
    </picture>
  </region>
  <region id="80" left="198" top="3150" width="136" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <text lang="eng">
      <p>set 'N' radials</p>
    </text>
  </region>
  <region id="81" left="486" top="3150" width="33" height="33" color="#000000" bgColor="#ffffff">
    <picture>
      <raw format="png" encoding="base64">iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACASURBVEhL7dNBDoQgFANQruH97+Y1sFW/aSwuBGRhSHwdUiZ2ZcoZz8eQXvaG9FIl/LRA8k08PYs/tkB6qeaIQnqp5ohCeqnmiEIWSrYi+lrIQslWRF8LeRzWddldF7w5RVeD78TJL6jXCCG9pCEjNEfukF6GISP0nxHSj/S9lDdOQxboEuxS7AAAAABJRU5ErkJggg==</raw>
    </picture>
  </region>
  <region id="82" left="522" top="3150" width="43" height="24" color="#000000" bgColor="#ffff80" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>size radials</p>
      </description>
      <input>
        <e type="operand">s</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="83" left="81" top="3177" width="167" height="102" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">r</e>
        <e type="operand">1</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">N</e>
        <e type="operand">24</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">step</e>
        <e type="operand">0</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="operand">N</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="3">range</e>
        <e type="operator" args="2">:</e>
        <e type="operand">r</e>
        <e type="operand">θ</e>
        <e type="function" args="2">f</e>
        <e type="operand">r</e>
        <e type="operand">i</e>
        <e type="operand">θ</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </math>
  </region>
  <region id="84" left="261" top="3177" width="365" height="84" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">step</e>
        <e type="function" args="1">real</e>
        <e type="operand">r</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">Re</e>
        <e type="operator" args="2">:</e>
        <e type="operand">step</e>
        <e type="function" args="1">imag</e>
        <e type="operand">1</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">Im</e>
        <e type="operator" args="2">:</e>
        <e type="operand">X</e>
        <e type="operand">step</e>
        <e type="function" args="1">real</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operand">s</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">Y</e>
        <e type="operand">step</e>
        <e type="function" args="1">imag</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operand">s</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="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>
      </input>
    </math>
  </region>
  <region id="85" left="639" top="3177" width="133" height="82" color="#000000" bgColor="#ebebeb">
    <writer lang="eng"><![CDATA[<span style="font-family: 'Arial'; font-size: 10pt; font-weight: normal; font-style: normal; color: Black; background-color: Transparent; text-align: left; line-height: 115%">
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Blue">From here . . .</span></strong></span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Red">1.</span></strong> Set  <strong><span style="color: Red">N  </span></strong>radials</span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 14pt"><strong><span style="color: Red">2.</span></strong> Size  <span style="color: Red">s </span> radials</span></span></div></span>]]></writer>
  </region>
  <region id="86" left="261" top="3258" width="213" height="42" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p> ◄  Departure angle</p>
      </description>
      <input>
        <e type="operand">r</e>
        <e type="operand">2</e>
        <e type="operand">π</e>
        <e type="operator" args="2">*</e>
        <e type="operand">step</e>
        <e type="operator" args="2">*</e>
        <e type="function" args="2">f</e>
        <e type="function" preserve="true" args="1">vectorize</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" preserve="true" args="1">arg</e>
      </input>
      <contract>
        <e type="operand" style="unit">°</e>
      </contract>
      <result action="numeric">
        <e type="operand">15</e>
      </result>
    </math>
  </region>
  <region id="87" top="3303" color="#ff0000" bgColor="#ebebeb">
    <area collapsed="true">
      <title lang="eng">
        <p>     Radial Stem     </p>
      </title>
    </area>
    <region id="88" left="63" top="3339" width="314" height="198" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math>
        <description active="true" position="Top" lang="eng">
          <p>Core component of the stem style</p>
        </description>
        <input>
          <e type="operand">P</e>
          <e type="operand">v</e>
          <e type="function" args="2">replicate</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">:</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">v</e>
          <e type="function" preserve="true" args="1">length</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">P</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">1</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">continue</e>
          <e type="operand">j</e>
          <e type="operand">1</e>
          <e type="operand">P</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">T</e>
          <e type="operand">k</e>
          <e type="operand">j</e>
          <e type="operator" args="2">+</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">v</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operator" args="2">:</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">k</e>
          <e type="operand">k</e>
          <e type="operand">P</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">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="3">for</e>
          <e type="operand">T</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="5">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="89" left="459" top="3339" width="357" height="267" border="true" color="#000000" bgColor="#ebebeb" fontSize="10">
      <math decimalPlaces="6">
        <description active="true" position="Top" lang="eng">
          <p>Stem construction</p>
        </description>
        <input>
          <e type="operand">vy</e>
          <e type="function" args="1">stem</e>
          <e type="operand">N</e>
          <e type="operand">0</e>
          <e type="operator" args="2">:</e>
          <e type="operand">N</e>
          <e type="operand">vy</e>
          <e type="function" preserve="true" args="1">length</e>
          <e type="operator" args="2">:</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">q</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">3</e>
          <e type="operator" args="2">:</e>
          <e type="operand">q</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="4">line</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">1</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="3">line</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">v</e>
          <e type="operand">i</e>
          <e type="function" preserve="true" args="2">el</e>
          <e type="operand">i</e>
          <e type="operator" args="2">:</e>
          <e type="function" preserve="true" args="3">for</e>
          <e type="operand">i</e>
          <e type="operand">1</e>
          <e type="operand">N</e>
          <e type="function" preserve="true" args="2">range</e>
          <e type="operand">S</e>
          <e type="operand">3</e>
          <e type="operand">i</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="function" preserve="true" args="3">for</e>
          <e type="operand">u</e>
          <e type="operand">q</e>
          <e type="operand">v</e>
          <e type="function" args="2">replicate</e>
          <e type="operator" args="2">:</e>
          <e type="operand">V</e>
          <e type="operand">u</e>
          <e type="operand">S</e>
          <e type="function" preserve="true" args="2">augment</e>
          <e type="operator" args="2">:</e>
          <e type="operand">V</e>
          <e type="operand">V</e>
          <e type="operand">3</e>
          <e type="operand">V</e>
          <e type="function" preserve="true" args="1">rows</e>
          <e type="operand">1</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="5">submatrix</e>
          <e type="operator" args="2">:</e>
          <e type="operand">8</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="10">line</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region id="90" left="63" top="3573" width="395" height="53" color="#000000" bgColor="#ffe1e1" fontSize="10">
      <math decimalPlaces="3">
        <input>
          <e type="operand">radial</e>
          <e type="operand">X</e>
          <e type="function" args="1">stem</e>
          <e type="operand">Y</e>
          <e type="function" args="1">stem</e>
          <e type="function" preserve="true" args="2">augment</e>
          <e type="operator" args="2">:</e>
          <e type="operand">radial</e>
          <e type="operand">radial</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="2">col</e>
          <e type="operand">radial</e>
          <e type="operand">4</e>
          <e type="function" preserve="true" args="2">col</e>
          <e type="function" preserve="true" args="2">augment</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="91" top="3681" color="#000000" bgColor="#ffffff">
      <area terminator="true" />
    </region>
  </region>
  <region id="92" left="81" top="3717" width="666" height="31" color="#0000ff" bgColor="#ebebeb" fontSize="14">
    <text lang="eng">
      <p bold="true">============ Elliptic ▲  radius / radials ===============</p>
    </text>
  </region>
  <region id="93" left="117" top="3789" width="155" height="36" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="operand">β</e>
        <e type="function" args="2">C</e>
        <e type="operand">β</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="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>
      </input>
    </math>
  </region>
  <region id="94" left="117" top="3834" width="43" height="24" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>set small/large radius radial  </p>
      </description>
      <input>
        <e type="operand">β</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="95" left="117" top="3870" width="240" height="158" color="#000000" bgColor="#ebebeb" fontSize="10">
    <plot axes="false" type="2d" render="lines" scale_x="3.79749833583241" scale_y="3.79749833583241" scale_z="3.79749833583241" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="0" transpose_y="0" transpose_z="0">
      <description active="true" position="Top" lang="eng">
        <p>Demo elliptic 1/2</p>
      </description>
      <input>
        <e type="operand">radial</e>
        <e type="operand">x</e>
        <e type="operand">β</e>
        <e type="function" args="2">C</e>
        <e type="operand">x</e>
        <e type="operand">r</e>
        <e type="function" args="2">C</e>
        <e type="operand">E</e>
        <e type="operand">6</e>
        <e type="function" preserve="true" args="2">el</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="96" left="387" top="3897" width="240" height="158" color="#000000" bgColor="#ebebeb" fontSize="10">
    <plot type="2d" render="lines" scale_x="3.4522712143931" scale_y="3.4522712143931" scale_z="3.4522712143931" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="0" transpose_y="0" transpose_z="0">
      <input>
        <e type="operand">E</e>
      </input>
    </plot>
  </region>
</regions>