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    </math>
  </region>
  <region id="25" left="0" top="2079" width="283" height="140" border="true" color="#000000" bgColor="#ffffe1" fontSize="10">
    <math decimalPlaces="3">
      <input>
        <e type="operand">γ</e>
        <e type="operand">1.4</e>
        <e type="operator" args="2">:</e>
        <e type="bracket">(</e>
        <e type="operand" style="string">Air isentropic</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">k</e>
        <e type="operand">0.88128485</e>
        <e type="operator" args="2">:</e>
        <e type="bracket">(</e>
        <e type="operand" style="string">Pitot constant</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">p</e>
        <e type="operand" style="string">static pressure</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">qc</e>
        <e type="operand" style="string">dynamic pressure</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">x</e>
        <e type="operand" style="string">Pitot dynamic ratio qc/P</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">x</e>
        <e type="operand">qc</e>
        <e type="operand">p</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">≡</e>
        <e type="bracket">(</e>
        <e type="operand" style="string">supersonic Pitot ratio</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">6</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="8">line</e>
      </input>
    </math>
  </region>
  <region id="26" left="324" top="2079" width="332" height="90" color="#000000" bgColor="#e1ffff">
    <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="text-decoration: underline"><span style="color: Red">Observe the canvas solutions</span></span><span style="color: Red">:</span></strong></span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 11pt">as 'x' in Supersonic(x) runs on the plot canvas, </span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 11pt">the 'roots' solves and plots each canvas pixel result ...</span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 11pt">each result on the basis of  96 ppi [pixel per inch].</span></span></div></span>]]></writer>
  </region>
  <region id="27" left="324" top="2169" width="213" height="45" color="#000000" bgColor="#ebebeb" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>Plot limit</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">c</e>
        <e type="operand">1</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">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>
      </input>
    </math>
  </region>
  <region id="28" left="648" top="2196" width="96" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">t0</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="1">time</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="29" left="0" top="2232" width="541" height="181" border="true" color="#000000" bgColor="#ffffe1" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">Subsonic</e>
        <e type="operand">2</e>
        <e type="operand">γ</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">/</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">γ</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="operand">γ</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">^</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">k</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">&amp;</e>
        <e type="operand" style="string">Supersonic</e>
        <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">Supersonic</e>
        <e type="operand">U</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="operand">7</e>
        <e type="operand">U</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</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="operand">2.5</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="2">/</e>
        <e type="operand">k</e>
        <e type="operator" args="2">-</e>
        <e type="operand">0</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">U</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">roots</e>
        <e type="operand">k</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="operand" style="string">Subsonic</e>
        <e type="function" preserve="true" args="3">cases</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="30" left="0" top="2421" width="542" height="223" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="5.50431814035732" scale_y="5.99420245484913" scale_z="32.9939973092003" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-233" transpose_y="-77" transpose_z="0">
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">Subsonic</e>
        <e type="operand">x</e>
        <e type="function" args="1">Supersonic</e>
        <e type="operand">x</e>
        <e type="function" args="1">c</e>
        <e type="operator" args="2">*</e>
        <e type="operand">k</e>
        <e type="operand">1</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </plot>
  </region>
  <region id="31" left="594" top="2439" width="149" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math decimalPlaces="0">
      <input>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="1">time</e>
        <e type="operand">t0</e>
        <e type="operator" args="2">-</e>
      </input>
      <result action="numeric">
        <e type="operand">70</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
  </region>
  <region id="32" left="45" top="2475" width="94" height="24" color="#ff0000" bgColor="#ebebeb" fontSize="10">
    <text lang="eng">
      <p>supersonic</p>
    </text>
  </region>
  <region id="33" left="45" top="2583" width="78" height="24" color="#0000ff" bgColor="#ebebeb" fontSize="10">
    <text lang="eng">
      <p>subsonic</p>
    </text>
  </region>
</regions>