er">size_t</span> <span class="identifier">n_points</span> <span class="special">=</span> <span class="number">100</span><span class="special">;</span> <span class="comment">// we will generate 100 points</span>

  <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="identifier">point_t</span><span class="special">&gt;</span> <span class="identifier">points</span><span class="special">;</span>
  <span class="ide