span class="n">L</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">alpha</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">omega</span><span class="p">)</span><span class="w"> </span><span class="o">/</span><span class="w"> </span><span class="p">(</span><span class="mi">2</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">omega</span><span class="p">)</s