n><span class="o">.</span><span class="n">pi</span><span class="o">/</span><span class="mi">180</span><span class="p">)</span> <span class="o">+</span>\
        <span class="mf">0.32</span><span class="o">*</span><span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">((</span><span class="mi">3</span><span class="o">*</span><span class="n">hp</span> <span class="o">+</span> <span class="mi">6</span><span class="p">)</span><span class="o">*</span><span class="n">np</span><