span class="co">#&gt; &lt;pillar_num:2[1]&gt;</span></span>
<span id="cb5-15"><a href="#cb5-15" aria-hidden="true" tabindex="-1"></a><span class="co">#&gt; [1] 12</span></span>
<span id="cb5-16"><a href="#cb5-16" aria-hidden="true" tabindex="-1"></a><span class="fu">num</span>(<span class="dv">3</span>, <span class="at">digits =</span> <span class="dv">2</span>) <span class="sc">*</span> <span class="fu">num</span>(<span class="dv">4</span>, <span class="at">sigfig =</span> <span class="dv">2</span>)</span>