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      <header alignment="Center" color="#a9a9a9">&amp;[DATE] &amp;[TIME] - &amp;[FILENAME]</header>
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      <description active="false" position="Right" lang="eng">
        <p>collect some functions</p>
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        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">8</e>
        <e type="operand">15</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
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        <e type="operand">u</e>
        <e type="operator" args="2">-</e>
        <e type="operand">4</e>
        <e type="operator" args="2">/</e>
        <e type="function" preserve="true" args="1">exp</e>
        <e type="operator" args="2">*</e>
        <e type="operand">15</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operand">2</e>
        <e type="operand">4</e>
        <e type="function" preserve="true" args="1">sqrt</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">/</e>
        <e type="operand">x</e>
        <e type="operand">u</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">*</e>
        <e type="bracket">(</e>
        <e type="function" preserve="true" args="1">sin</e>
        <e type="operator" args="2">*</e>
        <e type="operand">u</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="4">int</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
        <e type="operand">α</e>
        <e type="operand">π</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">δ</e>
        <e type="operand">u</e>
        <e type="operand">α</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">u</e>
        <e type="function" preserve="true" args="1">sin</e>
        <e type="operator" args="2">*</e>
        <e type="operand">u</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="4">int</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x</e>
        <e type="operand">u</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">x</e>
        <e type="operand">u</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="1">sin</e>
        <e type="operator" args="2">*</e>
        <e type="operand">u</e>
        <e type="operand">0</e>
        <e type="operand">x</e>
        <e type="function" preserve="true" args="4">int</e>
        <e type="operator" args="2">:</e>
        <e type="operand">1</e>
        <e type="operand">3</e>
        <e type="function" preserve="true" args="5">mat</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
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  <region id="1" left="459" top="9" width="286" height="67" border="true" color="#000000" bgColor="#ffffe1">
    <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: 11pt">Smath native canvas is 230 pixels wide. That</span></span></div>
<div><span style="font-family: 'Symbol'"><span style="font-size: 11pt">F</span></span><span style="font-family: 'Times New Roman'"><span style="font-size: 11pt">(x)*c(x) is slided/constrained is immaterial.</span></span></div>
<div><span style="font-family: 'Times New Roman'"><span style="font-size: 11pt">The 3 plots run the integrator 230 times each.</span></span></div></span>]]></writer>
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    <math>
      <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">15</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>
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    <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>
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        <e type="operand">x</e>
        <e type="function" args="1">Φ</e>
        <e type="operand">x</e>
        <e type="function" args="1">c</e>
        <e type="operator" args="2">*</e>
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        <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>
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        <e type="operand">123</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
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    <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>
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      <input>
        <e type="operand">x</e>
        <e type="function" args="1">δ</e>
        <e type="operand">α</e>
        <e type="operand">2</e>
        <e type="operand">α</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">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </input>
    </plot>
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  <region id="8" left="432" top="225" width="141" height="26" color="#000000" bgColor="#ffe1e1" 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">7</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
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    <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>
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        <e type="operand">x</e>
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      <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>
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      <result action="numeric">
        <e type="operand">10</e>
        <e type="operand" style="unit">s</e>
        <e type="operator" args="2">*</e>
      </result>
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