">i</span><span class="p">,</span><span class="mi">2</span><span class="p">]</span><span class="o">-</span><span class="n">dt</span><span class="p">[</span><span class="n">i</span><span class="p">,</span><span class="mi">1</span><span class="p">])</span><span class="o">/</span> <span class="p">(</span><span class="mi">60</span> <span class="o">*</span> <span class="mi">60</span> <span class="o">*</span> <span class="mi">24</span><span class="p">))</span>
                    <span class="n">mu_rel0</span><sp