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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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    <text lang="rus">
      <p bold="true">The spiral curved along a given 3d curve</p>
    </text>
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  <region id="1" top="63" color="#000000" bgColor="#ffffff">
    <area collapsed="true">
      <title lang="rus">
        <p>Dragilev's Method</p>
      </title>
    </area>
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          <e type="operand">X0</e>
          <e type="operand">tmin</e>
          <e type="operand">tmax</e>
          <e type="operand">N</e>
          <e type="function" args="4">D</e>
          <e type="operand">n</e>
          <e type="operand">f</e>
          <e type="function" args="1">rows</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="function" args="2">range</e>
          <e type="operand">u</e>
          <e type="operand">k</e>
          <e type="function" args="2">el</e>
          <e type="operand">x</e>
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          <e type="operand">b</e>
          <e type="operand">1</e>
          <e type="operator" args="1">-</e>
          <e type="bracket">(</e>
          <e type="operand">f</e>
          <e type="operand">u</e>
          <e type="function" args="2">Jacobian</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">n</e>
          <e type="operand">n</e>
          <e type="function" args="5">submatrix</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">матрица свободных членов</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">A</e>
          <e type="operand">f</e>
          <e type="operand">u</e>
          <e type="function" args="2">Jacobian</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="5">submatrix</e>
          <e type="operator" args="2">:</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">основная(квадратная) матрица</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">n</e>
          <e type="operand">2</e>
          <e type="operator" args="2">&gt;</e>
          <e type="operand">det</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">b</e>
          <e type="operand">A</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</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" args="5">submatrix</e>
          <e type="function" args="2">augment</e>
          <e type="function" args="1">det</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">определителu дополнит.матриц</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">det</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="2">el</e>
          <e type="operand">A</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">2</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="5">submatrix</e>
          <e type="operand">b</e>
          <e type="function" args="2">augment</e>
          <e type="function" args="1">det</e>
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          <e type="operator" args="2">:</e>
          <e type="operand">det</e>
          <e type="operand">n</e>
          <e type="function" args="2">el</e>
          <e type="operand">A</e>
          <e type="function" args="1">det</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
          <e type="operand">k</e>
          <e type="operand">2</e>
          <e type="operator" args="2">:</e>
          <e type="operand">k</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">k</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
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          <e type="operand">k</e>
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          <e type="operand">A</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">1</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="5">submatrix</e>
          <e type="operand">b</e>
          <e type="operand">A</e>
          <e type="operand">1</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="operand">k</e>
          <e type="operand">1</e>
          <e type="operator" args="2">+</e>
          <e type="operand">n</e>
          <e type="operand">1</e>
          <e type="operator" args="2">-</e>
          <e type="function" args="5">submatrix</e>
          <e type="function" args="3">augment</e>
          <e type="function" args="1">det</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">:</e>
          <e type="function" args="4">for</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">line</e>
          <e type="operand">det</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="operand">b</e>
          <e type="operator" args="2">:</e>
          <e type="operand">det</e>
          <e type="operand">n</e>
          <e type="function" args="2">el</e>
          <e type="operand">A</e>
          <e type="function" args="1">det</e>
          <e type="operator" args="2">:</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">line</e>
          <e type="function" args="3">if</e>
          <e type="operand">dS</e>
          <e type="operand">det</e>
          <e type="operand">1</e>
          <e type="function" args="2">el</e>
          <e type="bracket">(</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operand">det</e>
          <e type="operand">2</e>
          <e type="function" args="2">el</e>
          <e type="bracket">(</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
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          <e type="operand">3</e>
          <e type="function" args="2">el</e>
          <e type="bracket">(</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">sqrt</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" args="2">range</e>
          <e type="operand">D2</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">det</e>
          <e type="operand">i</e>
          <e type="function" args="2">el</e>
          <e type="operand">dS</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">:</e>
          <e type="function" args="3">for</e>
          <e type="operand">t</e>
          <e type="operand">x</e>
          <e type="function" args="2">D1</e>
          <e type="operand">D2</e>
          <e type="operator" args="2">:</e>
          <e type="bracket">(</e>
          <e type="operand" style="string">Матрица  правых частей  системы ОДУ</e>
          <e type="operator" args="2">≡</e>
          <e type="operand">X0</e>
          <e type="operand">tmin</e>
          <e type="operand">tmax</e>
          <e type="operand">N</e>
          <e type="operand">t</e>
          <e type="operand">x</e>
          <e type="function" args="2">D1</e>
          <e type="function" args="5">rkfixed</e>
          <e type="operand">9</e>
          <e type="operand">1</e>
          <e type="function" args="11">line</e>
          <e type="operator" args="2">:</e>
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    <math>
      <description active="true" position="Right" lang="eng">
        <p>Surface 1</p>
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        <e type="operand">f</e>
        <e type="operand">1</e>
        <e type="function" args="2">el</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="function" args="2">el</e>
        <e type="bracket">(</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">4</e>
        <e type="operator" args="2">/</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="function" args="2">el</e>
        <e type="bracket">(</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operand">4</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">+</e>
        <e type="function" args="1">sin</e>
        <e type="operand">x</e>
        <e type="operand">3</e>
        <e type="function" args="2">el</e>
        <e type="operator" args="2">-</e>
        <e type="operand">0.7097</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">:</e>
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  <region id="5" left="54" top="711" width="264" height="44" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>Surface 2</p>
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        <e type="operand">f</e>
        <e type="operand">2</e>
        <e type="function" args="2">el</e>
        <e type="operand">x</e>
        <e type="operand">1</e>
        <e type="function" args="2">el</e>
        <e type="operand">2</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">4</e>
        <e type="operator" args="2">^</e>
        <e type="operand">x</e>
        <e type="operand">2</e>
        <e type="function" args="2">el</e>
        <e type="operand">2</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">4</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">x</e>
        <e type="operand">3</e>
        <e type="function" args="2">el</e>
        <e type="bracket">(</e>
        <e type="operand">4</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">+</e>
        <e type="operand">9</e>
        <e type="operator" args="2">-</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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  <region id="6" left="54" top="774" width="264" height="36" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="true" position="Right" lang="eng">
        <p>Kоординаты начальных точек</p>
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      <input>
        <e type="operand">X0</e>
        <e type="operand">0.7084</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0.1814</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0.5764</e>
        <e type="operator" args="1">-</e>
        <e type="operand">1</e>
        <e type="operand">3</e>
        <e type="function" args="5">mat</e>
        <e type="function" args="1">transpose</e>
        <e type="operator" args="2">:</e>
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  <region id="7" left="45" top="828" width="70" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
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        <e type="operand">tmin</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
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    <math>
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        <e type="operand">tmax</e>
        <e type="operand">14</e>
        <e type="operator" args="1">-</e>
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    <math>
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        <e type="operand">Δt</e>
        <e type="operand">0.02</e>
        <e type="operator" args="1">-</e>
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  <region id="10" left="360" top="828" width="76" height="41" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">N</e>
        <e type="operand">tmax</e>
        <e type="operand">Δt</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
      </input>
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        <e type="operand">N</e>
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      <result action="numeric">
        <e type="operand">700</e>
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    <math>
      <input>
        <e type="operand">r1</e>
        <e type="operand">0.3</e>
        <e type="operator" args="2">:</e>
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  <region id="13" left="54" top="882" width="193" height="26" color="#000000" bgColor="#ffffff" fontSize="10" showInputData="False">
    <math>
      <description active="false" position="Right" lang="rus">
        <p>Матрица координат    </p>
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        <e type="operand">B</e>
        <e type="operand">X0</e>
        <e type="operand">tmin</e>
        <e type="operand">tmax</e>
        <e type="operand">N</e>
        <e type="function" args="4">D</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="14" left="306" top="882" width="223" height="26" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">B1</e>
        <e type="operand">B</e>
        <e type="operand">1</e>
        <e type="operand">N</e>
        <e type="operand">2</e>
        <e type="operand">4</e>
        <e type="function" args="5">submatrix</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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  <region id="15" left="45" top="936" width="209" height="67" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="false" position="Right" lang="rus">
        <p>Поворот на угол α вокруг оси OX </p>
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      <input>
        <e type="operand">α</e>
        <e type="function" args="1">Ω1</e>
        <e type="operand">1</e>
        <e type="operand">0</e>
        <e type="operand">0</e>
        <e type="operand">0</e>
        <e type="operand">α</e>
        <e type="function" args="1">cos</e>
        <e type="operand">α</e>
        <e type="function" args="1">sin</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0</e>
        <e type="operand">α</e>
        <e type="function" args="1">sin</e>
        <e type="operand">α</e>
        <e type="function" args="1">cos</e>
        <e type="operand">3</e>
        <e type="operand">3</e>
        <e type="function" args="11">mat</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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  <region id="16" left="405" top="936" width="209" height="67" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <description active="false" position="Right" lang="rus">
        <p>Поворот на угол φ вокруг оси OY </p>
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      <input>
        <e type="operand">φ</e>
        <e type="function" args="1">Ω2</e>
        <e type="operand">φ</e>
        <e type="function" args="1">cos</e>
        <e type="operand">0</e>
        <e type="operand">φ</e>
        <e type="function" args="1">sin</e>
        <e type="operand">0</e>
        <e type="operand">1</e>
        <e type="operand">0</e>
        <e type="operand">φ</e>
        <e type="function" args="1">sin</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0</e>
        <e type="operand">φ</e>
        <e type="function" args="1">cos</e>
        <e type="operand">3</e>
        <e type="operand">3</e>
        <e type="function" args="11">mat</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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    <math>
      <input>
        <e type="operand">angle</e>
        <e type="function" args="1">Ω3</e>
        <e type="operand">angle</e>
        <e type="function" args="1">cos</e>
        <e type="operand">angle</e>
        <e type="function" args="1">sin</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0</e>
        <e type="operand">angle</e>
        <e type="function" args="1">sin</e>
        <e type="operand">angle</e>
        <e type="function" args="1">cos</e>
        <e type="operand">0</e>
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        <e type="operand">0.3673</e>
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