span><span class="p">%</span><span class="n">Ro</span><span class="p">)</span><span class="o">**</span><span class="mi">2</span><span class="o">+</span><span class="p">(</span><span class="n">Y_Z</span><span class="p">(</span><span class="n">cc</span><span class="p">)</span><span class="o">-</span><span class="n">F</span><span class="p">%</span><span class="n">Zo</span><span class="p">)</span><span class="o">**</span><span class="mi">2</span><span class="p">)</span><span class="o">*</span> <span class="p">&