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      <author>Oscar Campo</author>
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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 left="54" top="54" width="65" height="24" color="#000000" fontSize="10">
      <text lang="eng" fontFamily="Consolas" fontSize="10">
        <content>
          <p style="font-size: 10px;">Points </p>
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        <input>
          <e type="operand">P.0</e>
          <e type="operand">0</e>
          <e type="operand">6</e>
          <e type="operand">0</e>
          <e type="operand">3</e>
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          <e type="operand">5</e>
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          <e type="operator" args="1">-</e>
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          <e type="function" args="5">mat</e>
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          <e type="operand">P.2</e>
          <e type="operand">2</e>
          <e type="operand">3</e>
          <e type="operator" args="1">-</e>
          <e type="operand">1</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
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    <region left="504" top="54" width="67" height="63" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">P.3</e>
          <e type="operand">6</e>
          <e type="operand">0</e>
          <e type="operand">0</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
          <e type="operator" args="2">:</e>
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    <region left="54" top="135" width="58" height="24" color="#000000" fontSize="10">
      <text lang="eng" fontFamily="Consolas" fontSize="10">
        <content>
          <p>Sphere</p>
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    <region left="216" top="135" width="46" height="24" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">r</e>
          <e type="operand">5</e>
          <e type="operator" args="2">:</e>
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    </region>
    <region left="54" top="171" width="102" height="24" color="#000000" fontSize="10">
      <text lang="eng" fontFamily="Consolas" fontSize="10">
        <content>
          <p style="font-size: 10px;">Bezier curve</p>
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    </region>
    <region left="216" top="180" width="457" height="46" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">t</e>
          <e type="function" args="1">B</e>
          <e type="operand">1</e>
          <e type="operand">t</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operand">3</e>
          <e type="operator" args="2">^</e>
          <e type="operand">P.0</e>
          <e type="operator" args="2">*</e>
          <e type="operand">3</e>
          <e type="operand">t</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">t</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">P.1</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">3</e>
          <e type="operand">t</e>
          <e type="operand">2</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
          <e type="operand">1</e>
          <e type="operand">t</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operand">P.2</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="operand">t</e>
          <e type="operand">3</e>
          <e type="operator" args="2">^</e>
          <e type="operand">P.3</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">+</e>
          <e type="function" args="1">vectorize</e>
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    <region left="54" top="252" width="146" height="24" color="#000000" fontSize="10">
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        <content>
          <p>Intersection point</p>
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    <region left="216" top="252" width="306" height="32" color="#000000" fontSize="10">
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        <input>
          <e type="operand">to</e>
          <e type="operand">t</e>
          <e type="function" args="1">B</e>
          <e type="operand">t</e>
          <e type="function" args="1">B</e>
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          <e type="function" args="1">abs</e>
          <e type="function" args="1">sqrt</e>
          <e type="operand">r</e>
          <e type="operator" args="2">-</e>
          <e type="operand">t</e>
          <e type="function" args="2">roots</e>
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        <result action="numeric">
          <e type="operand">0.101</e>
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      <math>
        <input>
          <e type="operand">I</e>
          <e type="operand">to</e>
          <e type="function" args="1">B</e>
          <e type="operator" args="2">:</e>
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        <result action="numeric">
          <e type="operand">1.3009</e>
          <e type="operator" args="1">-</e>
          <e type="operand">4.8216</e>
          <e type="operand">0.2449</e>
          <e type="operator" args="1">-</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">mat</e>
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        <content>
          <p>Sanity check: I is in the sphere</p>
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    <region left="333" top="387" width="99" height="26" color="#000000" fontSize="10">
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        <input>
          <e type="operand">I</e>
          <e type="function" args="1">norme</e>
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          <e type="operand">5</e>
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