</span><span class="p">(</span><span class="n">n</span><span class="o">-</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="o">+</span><span class="mi">1</span><span class="p">)),</span><span class="o">-</span><span class="mi">1</span><span class="w"></span>
<span class="w">                              </span><span class="n">x</span><span class="p">(</span><span class="n">ix</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"