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      <title lang="eng">
        <p>     hatch [Martin]     </p>
      </title>
    </area>
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          <p>Erzeugt eine Matrix für die Darstellung vertikaler Linien zwischen den Funktionen f(x) und g(x) im Bereich von x1 bis x2 mit 2*n Linien.</p>
        </description>
        <description active="true" position="Top" lang="eng">
          <p>Generates a matrix for 2*n vertical lines (hatching) between functions f(x) and g(x) in x-range from x1 to x2</p>
        </description>
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          <e type="operand">x</e>
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          <e type="function" args="1">f</e>
          <e type="operand">x</e>
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          <e type="operand">4</e>
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          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" preserve="true" args="6">line</e>
          <e type="operator" args="2">:</e>
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        <description active="true" position="Top" lang="eng">
          <p>The centered XY system</p>
        </description>
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          <p />
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          <e type="operand">t</e>
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          <e type="operand">1</e>
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          <e type="operand">j</e>
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          <e type="operand">3</e>
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