pan><span class="p">,</span> <span class="n">x12</span><span class="p">,</span> <span class="n">x21</span><span class="p">,</span> <span class="n">x22</span><span class="p">,</span> <span class="n">lwork</span><span class="o">=</span><span class="n">lw</span><span class="p">,</span> <span class="n">lrwork</span><span class="o">=</span><span class="n">lrw</span><span class="p">,</span>
                               <span class="n">trans</span><span class="o">=</span><span class="s1">&#39;F&#39;</span><span 