pan><span class="va">x</span> <span class="op">=</span> <span class="op">~</span><span class="va">data</span><span class="op">)</span> <span class="va">x</span><span class="op">^</span><span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="pipe_add.html">pipe_add</a></span><span class="op">(</span><span class="va">p2</span>, <span class="st">"log2"</span>, \<span class="op">(</span><span class="va">x</span> <span class="op">=</span> <span class="o