gap&gt; ps := ParabolicQuadric(6,2);
Q(6, 2)
gap&gt; lines := AsList(Lines(ps));
&lt;closed orbit, 315 points&gt;
gap&gt; time;
58
gap&gt; List(lines);
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  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
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  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
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  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
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  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
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  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, 
  &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt;, &lt;a line in Q(6, 2)&gt; ]
gap&gt; time;
1
