 class="p">)</span><span class="o">*</span><span class="n">B_PHI</span><span class="p">(</span><span class="n">cc</span><span class="p">)</span><span class="o">/</span><span class="n">Y_R</span><span class="p">(</span><span class="n">cc</span><span class="p">)</span><span class="o">+</span><span class="n">Bmag</span><span class="p">(</span><span class="n">cc</span><span class="p">)</span><span class="o">*</span><span class="n">dBPHIdR</span><span class="p">(</span><span class="n">cc</span><span class="p">)<