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      <revision>22</revision>
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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
      <footer alignment="Center" color="#a9a9a9">&amp;[PAGENUM] / &amp;[COUNT]</footer>
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  <region id="0" left="18" top="18" width="291" height="31" color="#000000" bgColor="#80ffff" fontSize="14">
    <text lang="eng">
      <p bold="true">Infinite Pulse Generator</p>
    </text>
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  <region id="1" left="18" top="45" width="51" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>window</p>
      </description>
      <input>
        <e type="operand">N</e>
        <e type="operand">48</e>
        <e type="operator" args="2">:</e>
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    <math>
      <description active="true" position="Right" lang="eng">
        <p>symmetry around 0.5</p>
      </description>
      <input>
        <e type="operand">s</e>
        <e type="operand">0.5</e>
        <e type="operator" args="2">:</e>
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    <math decimalPlaces="9">
      <description active="true" position="Top" lang="eng">
        <p>specific ranged solve 'T' for  N = 48</p>
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      <input>
        <e type="operand">T</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operand">N</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">-</e>
        <e type="operand">0</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">T</e>
        <e type="operand">0.000867</e>
        <e type="operand">0.000869</e>
        <e type="function" preserve="true" args="4">solve</e>
        <e type="operator" args="2">:</e>
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      <result action="numeric">
        <e type="operand">0.000868056</e>
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    </math>
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    <math>
      <description active="true" position="Right" lang="eng">
        <p>period</p>
      </description>
      <input>
        <e type="operand">p</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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  <region id="5" left="162" top="153" width="43" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>sampling rate</p>
      </description>
      <input>
        <e type="operand">T</e>
        <e type="operand">T</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="6" left="18" top="189" width="338" height="62" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="operand">ω</e>
        <e type="function" args="2">f</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="2">mod</e>
        <e type="operand">s</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</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="operand">1</e>
        <e type="operator" args="1">-</e>
        <e type="function" preserve="true" args="3">cases</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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  <region id="7" left="18" top="252" width="115" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>recast the system</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">x</e>
        <e type="operand">N</e>
        <e type="function" args="2">f</e>
        <e type="operator" args="2">:</e>
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    <plot type="2d" render="lines" scale_x="3.4522712143931" scale_y="0.22876792454961" scale_z="0.789768920699073" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-81" transpose_y="2" transpose_z="0">
      <description active="true" position="Top" lang="eng">
        <p>Unary creneau around  0 axis</p>
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      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">p</e>
        <e type="operand">2</e>
        <e type="operand">p</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">N</e>
        <e type="operand">2</e>
        <e type="operand">N</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
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    <math>
      <input>
        <e type="operand">∑n</e>
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  <region id="10" left="297" top="351" width="119" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math decimalPlaces="6" trailingZeros="true">
      <input>
        <e type="operand">p</e>
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      <result action="numeric">
        <e type="operand">24.000000</e>
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    <math>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">x</e>
        <e type="operand">0</e>
        <e type="operand">p</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="4">int</e>
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      <result action="numeric">
        <e type="operand">11.996</e>
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    </math>
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    <text lang="eng">
      <p>===============================================</p>
    </text>
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  <region id="13" left="18" top="540" width="76" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">T</e>
        <e type="operand">0.001</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="14" left="18" top="567" width="338" height="62" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="operand">ω</e>
        <e type="function" args="2">f</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="2">mod</e>
        <e type="operand">s</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</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="operand">1</e>
        <e type="operator" args="1">-</e>
        <e type="function" preserve="true" args="3">cases</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
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  <region id="15" left="18" top="639" width="51" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">N</e>
        <e type="operand">50</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="16" left="18" top="666" width="115" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>recast the system</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">x</e>
        <e type="operand">N</e>
        <e type="function" args="2">f</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="17" left="18" top="702" width="62" height="41" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>period</p>
      </description>
      <input>
        <e type="operand">p</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="18" top="765" color="#000000" bgColor="#ffffff">
    <area collapsed="true">
      <title lang="eng">
        <p>     h     </p>
      </title>
    </area>
    <region id="19" left="360" top="783" width="171" height="1476" color="#000000" bgColor="#ffffff" fontSize="10">
      <math>
        <input>
          <e type="operand">h</e>
          <e type="operand">1</e>
          <e type="operand">0.0321</e>
          <e type="operator" args="1">-</e>
          <e type="operand">2</e>
          <e type="operand">0.0515</e>
          <e type="operator" args="1">-</e>
          <e type="operand">3</e>
          <e type="operand">0.0512</e>
          <e type="operator" args="1">-</e>
          <e type="operand">4</e>
          <e type="operand">0.0386</e>
          <e type="operator" args="1">-</e>
          <e type="operand">5</e>
          <e type="operand">0.0226</e>
          <e type="operator" args="1">-</e>
          <e type="operand">6</e>
          <e type="operand">0.0089</e>
          <e type="operator" args="1">-</e>
          <e type="operand">7</e>
          <e type="operand">0.0007</e>
          <e type="operand">8</e>
          <e type="operand">0.007</e>
          <e type="operand">9</e>
          <e type="operand">0.0122</e>
          <e type="operand">10</e>
          <e type="operand">0.0189</e>
          <e type="operand">11</e>
          <e type="operand">0.0292</e>
          <e type="operand">12</e>
          <e type="operand">0.0446</e>
          <e type="operand">13</e>
          <e type="operand">0.0654</e>
          <e type="operand">14</e>
          <e type="operand">0.0908</e>
          <e type="operand">15</e>
          <e type="operand">0.1178</e>
          <e type="operand">16</e>
          <e type="operand">0.1421</e>
          <e type="operand">17</e>
          <e type="operand">0.1586</e>
          <e type="operand">18</e>
          <e type="operand">0.1623</e>
          <e type="operand">19</e>
          <e type="operand">0.1498</e>
          <e type="operand">20</e>
          <e type="operand">0.1207</e>
          <e type="operand">21</e>
          <e type="operand">0.0782</e>
          <e type="operand">22</e>
          <e type="operand">0.0289</e>
          <e type="operand">23</e>
          <e type="operand">0.0188</e>
          <e type="operator" args="1">-</e>
          <e type="operand">24</e>
          <e type="operand">0.0563</e>
          <e type="operator" args="1">-</e>
          <e type="operand">25</e>
          <e type="operand">0.0769</e>
          <e type="operator" args="1">-</e>
          <e type="operand">26</e>
          <e type="operand">0.0779</e>
          <e type="operator" args="1">-</e>
          <e type="operand">27</e>
          <e type="operand">0.0609</e>
          <e type="operator" args="1">-</e>
          <e type="operand">28</e>
          <e type="operand">0.0317</e>
          <e type="operator" args="1">-</e>
          <e type="operand">29</e>
          <e type="operand">0.0016</e>
          <e type="operand">30</e>
          <e type="operand">0.0303</e>
          <e type="operand">31</e>
          <e type="operand">0.0477</e>
          <e type="operand">32</e>
          <e type="operand">0.0505</e>
          <e type="operand">33</e>
          <e type="operand">0.0397</e>
          <e type="operand">34</e>
          <e type="operand">0.0195</e>
          <e type="operand">35</e>
          <e type="operand">0.0036</e>
          <e type="operator" args="1">-</e>
          <e type="operand">36</e>
          <e type="operand">0.0229</e>
          <e type="operator" args="1">-</e>
          <e type="operand">37</e>
          <e type="operand">0.0337</e>
          <e type="operator" args="1">-</e>
          <e type="operand">38</e>
          <e type="operand">0.0338</e>
          <e type="operator" args="1">-</e>
          <e type="operand">39</e>
          <e type="operand">0.0245</e>
          <e type="operator" args="1">-</e>
          <e type="operand">40</e>
          <e type="operand">0.0093</e>
          <e type="operator" args="1">-</e>
          <e type="operand">41</e>
          <e type="operand">0.0068</e>
          <e type="operand">42</e>
          <e type="operand">0.0192</e>
          <e type="operand">43</e>
          <e type="operand">0.0246</e>
          <e type="operand">44</e>
          <e type="operand">0.0224</e>
          <e type="operand">45</e>
          <e type="operand">0.014</e>
          <e type="operand">46</e>
          <e type="operand">0.0025</e>
          <e type="operand">47</e>
          <e type="operand">0.0085</e>
          <e type="operator" args="1">-</e>
          <e type="operand">48</e>
          <e type="operand">0.0158</e>
          <e type="operator" args="1">-</e>
          <e type="operand">49</e>
          <e type="operand">0.0177</e>
          <e type="operator" args="1">-</e>
          <e type="operand">50</e>
          <e type="operand">0.0143</e>
          <e type="operator" args="1">-</e>
          <e type="operand">51</e>
          <e type="operand">0.007</e>
          <e type="operator" args="1">-</e>
          <e type="operand">52</e>
          <e type="operand">0.0015</e>
          <e type="operand">53</e>
          <e type="operand">0.0086</e>
          <e type="operand">54</e>
          <e type="operand">0.0125</e>
          <e type="operand">55</e>
          <e type="operand">0.0123</e>
          <e type="operand">56</e>
          <e type="operand">0.0085</e>
          <e type="operand">57</e>
          <e type="operand">0.0026</e>
          <e type="operand">58</e>
          <e type="operand">0.0034</e>
          <e type="operator" args="1">-</e>
          <e type="operand">59</e>
          <e type="operand">0.0078</e>
          <e type="operator" args="1">-</e>
          <e type="operand">60</e>
          <e type="operand">0.0094</e>
          <e type="operator" args="1">-</e>
          <e type="operand">61</e>
          <e type="operand">0.0081</e>
          <e type="operator" args="1">-</e>
          <e type="operand">62</e>
          <e type="operand">0.0045</e>
          <e type="operator" args="1">-</e>
          <e type="operand">63</e>
          <e type="operand">1.0179</e>
          <e type="operand">10</e>
          <e type="operand">5</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="1">-</e>
          <e type="operand">64</e>
          <e type="operand">0.004</e>
          <e type="operand">65</e>
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          <e type="operand">0.002</e>
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          <e type="operator" args="1">-</e>
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          <e type="operand">0.0039</e>
          <e type="operator" args="1">-</e>
          <e type="operand">71</e>
          <e type="operand">0.005</e>
          <e type="operator" args="1">-</e>
          <e type="operand">72</e>
          <e type="operand">0.0045</e>
          <e type="operator" args="1">-</e>
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          <e type="operand">0.0028</e>
          <e type="operator" args="1">-</e>
          <e type="operand">74</e>
          <e type="operand">0.0004</e>
          <e type="operator" args="1">-</e>
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          <e type="operand">77</e>
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          <e type="operand">0.0004</e>
          <e type="operator" args="1">-</e>
          <e type="operand">81</e>
          <e type="operand">0.0019</e>
          <e type="operator" args="1">-</e>
          <e type="operand">81</e>
          <e type="operand">2</e>
          <e type="function" preserve="true" args="164">mat</e>
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      <area terminator="true" />
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  </region>
  <region id="21" left="18" top="2322" width="104" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">h</e>
        <e type="operand">h</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="2">col</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="22" left="306" top="2349" width="76" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">strip</e>
        <e type="operand">5</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="23" left="18" top="2358" width="240" height="158" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="3.4522712143931" scale_y="0.205891132094649" scale_z="0.710792028629165" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-94" transpose_y="0" transpose_z="0">
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">N</e>
        <e type="operand">2</e>
        <e type="operand">N</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">p</e>
        <e type="operand">2</e>
        <e type="operand">p</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </plot>
  </region>
  <region id="24" left="306" top="2385" width="142" height="48" border="true" color="#000000" bgColor="#ffffc0" fontSize="10">
    <math>
      <input>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="operand">strip</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">h</e>
        <e type="operand">j</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>
      </input>
    </math>
  </region>
  <region id="25" left="18" top="2556" width="282" height="104" border="true" color="#000000" bgColor="#ffffc0" fontSize="10">
    <math>
      <input>
        <e type="operand">Y1</e>
        <e type="operand">t</e>
        <e type="operand">1</e>
        <e type="operand">81</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">y1</e>
        <e type="operand">t</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">t</e>
        <e type="operand">m</e>
        <e type="operator" args="2">-</e>
        <e type="function" args="1">X1</e>
        <e type="operand">h</e>
        <e type="operand">m</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">*</e>
        <e type="operand">m</e>
        <e type="operand">1</e>
        <e type="operand">81</e>
        <e type="function" preserve="true" args="4">sum</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">1</e>
        <e type="operand">81</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">y1</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="26" left="18" top="2682" width="291" height="158" color="#000000" bgColor="#ffffff" fontSize="10">
    <plot type="2d" render="lines" scale_x="2.79633968365841" scale_y="0.2685876789913" scale_z="0.75106238530508" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-112" transpose_y="1" transpose_z="0">
      <description active="true" position="Top" lang="eng">
        <p>Does NOT quite sanity  the low range ?Stripping in the low range is applied.The 'h' vector couldn't  be reproducedfrom source "Butterworth" .</p>
      </description>
      <input>
        <e type="operand">Y1</e>
        <e type="operand">strip</e>
        <e type="operand">1</e>
        <e type="operand">strip</e>
        <e type="operand">1</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">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </input>
    </plot>
  </region>
  <region id="27" left="18" top="3006" width="233" height="31" color="#000000" bgColor="#80ffff" fontSize="14">
    <text lang="eng">
      <p bold="true">More user pulse ...</p>
    </text>
  </region>
  <region id="28" left="18" top="3042" width="51" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>window</p>
      </description>
      <input>
        <e type="operand">N</e>
        <e type="operand">48</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="29" left="189" top="3042" width="68" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>symmetry around 0.5</p>
      </description>
      <input>
        <e type="operand">s</e>
        <e type="operand">0.05</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="30" left="18" top="3069" width="465" height="43" color="#000000" bgColor="#ffe1e1" fontSize="10">
    <math decimalPlaces="9">
      <description active="true" position="Top" lang="eng">
        <p>Initialization of 'T' is specific wrt 'N' in this example</p>
      </description>
      <input>
        <e type="operand">T</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operand">N</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">-</e>
        <e type="operand">0</e>
        <e type="operator" args="2">≡</e>
        <e type="operand">T</e>
        <e type="operand">0.000867</e>
        <e type="operand">0.000869</e>
        <e type="function" preserve="true" args="4">solve</e>
        <e type="operator" args="2">:</e>
      </input>
      <result action="numeric">
        <e type="operand">0.000868056</e>
      </result>
    </math>
  </region>
  <region id="31" left="18" top="3141" width="43" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>sampling rate</p>
      </description>
      <input>
        <e type="operand">T</e>
        <e type="operand">T</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="32" left="18" top="3168" width="62" height="41" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>period</p>
      </description>
      <input>
        <e type="operand">p</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="33" left="18" top="3204" width="329" height="62" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="operand">ω</e>
        <e type="function" args="2">f</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">≤</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="2">mod</e>
        <e type="operand">s</e>
        <e type="operand">1</e>
        <e type="operand">T</e>
        <e type="operand">ω</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="operand">0</e>
        <e type="function" preserve="true" args="3">cases</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="34" left="18" top="3267" width="115" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>recast the system</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">x</e>
        <e type="operand">N</e>
        <e type="function" args="2">f</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="35" left="360" top="3276" width="204" height="75" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">x</e>
        <e type="operand">0</e>
        <e type="operand">50</e>
        <e type="operand">0.1</e>
        <e type="function" preserve="true" args="3">range</e>
        <e type="operator" args="2">:</e>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">pulse</e>
        <e type="operand">j</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">x</e>
        <e type="operand">j</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" args="1">X1</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
      </input>
    </math>
  </region>
  <region id="36" left="18" top="3294" width="240" height="158" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <plot type="2d" render="lines" scale_x="3.4522712143931" scale_y="0.22876792454961" scale_z="0.789768920699073" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-81" transpose_y="2" transpose_z="0">
      <description active="true" position="Top" lang="eng">
        <p>Narrow pulse   above 0 axis</p>
      </description>
      <input>
        <e type="operand">x</e>
        <e type="function" args="1">X1</e>
        <e type="operand">p</e>
        <e type="operand">2</e>
        <e type="operand">p</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">N</e>
        <e type="operand">2</e>
        <e type="operand">N</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">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">sys</e>
      </input>
    </plot>
  </region>
  <region id="37" left="360" top="3357" width="240" height="158" color="#000000" bgColor="#ffffff" fontSize="10">
    <plot type="2d" render="lines" scale_x="5.55991731349224" scale_y="0.185302018885184" scale_z="1.0302639030248" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-72" transpose_y="2" transpose_z="0">
      <input>
        <e type="operand">0</e>
        <e type="operand">50</e>
        <e type="operand">0.1</e>
        <e type="function" preserve="true" args="3">range</e>
        <e type="operand">pulse</e>
        <e type="function" preserve="true" args="2">augment</e>
      </input>
    </plot>
  </region>
  <region id="38" left="18" top="3582" width="440" height="275" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2" decimalPlaces="6">
      <description active="true" position="Top" lang="eng">
        <p>Stem construction over a data set</p>
      </description>
      <input>
        <e type="operand">data</e>
        <e type="function" args="1">Stem</e>
        <e type="operand">stemX</e>
        <e type="operand">1</e>
        <e type="operand">data</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operator" args="2">:</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operand">stemX</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">stem</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">data</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">data</e>
        <e type="operand">i</e>
        <e type="operand">2</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">data</e>
        <e type="operand">i</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="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand" style="string" />
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operand">stem</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">stem</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">stem</e>
        <e type="operand">i</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">stem</e>
        <e type="operand">i</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">el</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">0</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">for</e>
        <e type="operand">V</e>
        <e type="operand">stem</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">:</e>
        <e type="operand">j</e>
        <e type="operand">2</e>
        <e type="operand">stem</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="operand">1</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">V</e>
        <e type="operand">V</e>
        <e type="operand">stem</e>
        <e type="operand">j</e>
        <e type="function" preserve="true" args="2">el</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">V</e>
        <e type="operand">V</e>
        <e type="operand">data</e>
        <e type="operand">data</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">row</e>
        <e type="function" preserve="true" args="2">stack</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="39" left="18" top="3960" width="319" height="130" border="true" color="#000000" bgColor="#ffffc0" fontSize="10">
    <math>
      <description active="true" position="Top" lang="eng">
        <p>vector 'impulse' for Fourier ...'n' pulses separated 'n-1'</p>
      </description>
      <input>
        <e type="operand">n</e>
        <e type="function" args="1">myPulse</e>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="operand">n</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">impulse</e>
        <e type="operand">n</e>
        <e type="operand">j</e>
        <e type="operator" args="2">*</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">j</e>
        <e type="operand">j</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">line</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">j</e>
        <e type="operand">1</e>
        <e type="operand">impulse</e>
        <e type="function" preserve="true" args="1">rows</e>
        <e type="function" preserve="true" args="2">range</e>
        <e type="operand">u</e>
        <e type="operand">j</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operand">j</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">for</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="operand">u</e>
        <e type="operand">impulse</e>
        <e type="function" preserve="true" args="2">augment</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="40" left="405" top="3969" width="43" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">n</e>
        <e type="operand">6</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="41" left="576" top="4059" width="157" height="441" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">n</e>
        <e type="function" args="1">myPulse</e>
      </input>
      <result action="numeric">
        <e type="operand">1</e>
        <e type="operand">0</e>
        <e type="operand">2</e>
        <e type="operand">0</e>
        <e type="operand">3</e>
        <e type="operand">0</e>
        <e type="operand">4</e>
        <e type="operand">0</e>
        <e type="operand">5</e>
        <e type="operand">0</e>
        <e type="operand">6</e>
        <e type="operand">1</e>
        <e type="operand">7</e>
        <e type="operand">0</e>
        <e type="operand">8</e>
        <e type="operand">0</e>
        <e type="operand">9</e>
        <e type="operand">0</e>
        <e type="operand">10</e>
        <e type="operand">0</e>
        <e type="operand">11</e>
        <e type="operand">0</e>
        <e type="operand">12</e>
        <e type="operand">1</e>
        <e type="operand">13</e>
        <e type="operand">0</e>
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        <e type="operand">2</e>
        <e type="function" preserve="true" args="48">mat</e>
      </result>
    </math>
  </region>
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    <plot type="2d" render="lines" scale_x="5.99420245484912" scale_y="0.409370033518214" scale_z="2.45384685985655" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-66" transpose_y="1" transpose_z="0">
      <input>
        <e type="operand">n</e>
        <e type="function" args="1">myPulse</e>
        <e type="function" args="1">Stem</e>
      </input>
    </plot>
  </region>
</regions>