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          <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Splines" lineantialias="true" linecolor="Transparent" linethickness="1" linepattern="Solid" symbolantialias="true" symbolsize="5" symboltype="Dot" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
          <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" lineantialias="true" linecolor="Red" linethickness="2" linepattern="Solid" symbolantialias="true" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
          <trace seriesname="" isy2data="false" isvisible="true" plotmethod="Lines" lineantialias="true" linecolor="Green" linethickness="1" linepattern="Solid" symbolantialias="true" symbolsize="8" symboltype="None" symbolborderthickness="1" symbolbordercolor="Black" symbolfillcolor="White" />
        </traces>
        <input>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="function" args="2">augment</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">f</e>
          <e type="operand">x</e>
          <e type="operand">y</e>
          <e type="function" args="2">vaxis</e>
          <e type="operand">3</e>
          <e type="operand">1</e>
          <e type="function" args="5">sys</e>
        </input>
      </xyplot>
    </region>
    <region left="315" top="639" width="301" height="74" color="#000000" fontSize="10">
      <math significantDigitsMode="true">
        <input>
          <e type="operand" style="string">Hyperbola</e>
          <e type="operand">I.2</e>
          <e type="operand">0</e>
          <e type="operator" args="2">&lt;</e>
          <e type="operand" style="string">Ellipse</e>
          <e type="operand">I.2</e>
          <e type="operand">0</e>
          <e type="operator" args="2">&gt;</e>
          <e type="operand" style="string">Parabola</e>
          <e type="function" args="5">cases</e>
        </input>
        <result action="numeric">
          <e type="operand" style="string">Hyperbola</e>
        </result>
      </math>
    </region>
    <region left="315" top="729" width="206" height="37" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">N</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="function" args="2">vaxis</e>
          <e type="operand">0</e>
          <e type="operator" args="2">&gt;</e>
          <e type="function" args="1">vectorize</e>
          <e type="function" args="1">sum</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">2</e>
        </result>
      </math>
    </region>
    <region left="315" top="774" width="78" height="23" color="#000000" fontSize="10">
      <text lang="rus" fontFamily="Arial" fontSize="10">
        <content>
          <p>Hyperbola </p>
        </content>
      </text>
    </region>
    <region left="405" top="774" width="117" height="24" color="#000000" fontSize="10">
      <text lang="eng" fontFamily="Consolas" fontSize="10">
        <content>
          <p>... or ellipse</p>
        </content>
      </text>
    </region>
    <region left="315" top="810" width="378" height="66" color="#000000" fontSize="10">
      <math significantDigitsMode="true">
        <input>
          <e type="operand" style="string">2+3 points</e>
          <e type="operand">N</e>
          <e type="operand">2</e>
          <e type="operator" args="2">≡</e>
          <e type="bracket">(</e>
          <e type="operand">N</e>
          <e type="operand">3</e>
          <e type="operator" args="2">≡</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">|</e>
          <e type="operand" style="string">1+4 points</e>
          <e type="operand">N</e>
          <e type="operand">1</e>
          <e type="operator" args="2">≡</e>
          <e type="bracket">(</e>
          <e type="operand">N</e>
          <e type="operand">4</e>
          <e type="operator" args="2">≡</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">|</e>
          <e type="operand" style="string">0+5 points</e>
          <e type="function" args="5">cases</e>
        </input>
        <result action="numeric">
          <e type="operand" style="string">2+3 points</e>
        </result>
      </math>
    </region>
  </regions>
</worksheet>