an> 6     20    70 -35.1 1578.1</span>
<span class="r-in"><span><span class="fu"><a href="display_xy.html">animate_xy</a></span><span class="op">(</span><span class="va">laser</span><span class="op">[</span>, <span class="op">-</span><span class="fl">4</span><span class="op">]</span><span class="op">)</span></span></span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> Converting input data to the required matrix format.</span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> Using half_range 4