n><span class="n">r_s</span><span class="o">**</span><span class="mi">2</span><span class="p">)</span> <span class="o">+</span> <span class="mf">1.0</span><span class="p">)</span>
                    <span class="p">)</span>
                    <span class="o">-</span> <span class="p">(</span>
                        <span class="p">(</span><span class="n">q</span><span class="p">[</span><span class="s2">&quot;a&quot;</span><span class="p">]</span> <span class="o">+</span> <span class="mf">2.0</span> <span 