pan class="n">xr</span><span class="p">,</span><span class="mf">1.0d0</span><span class="o">+</span><span class="n">xi</span><span class="p">,</span><span class="o">-</span><span class="n">xr</span><span class="p">,</span><span class="mf">1.0d0</span><span class="o">-</span><span class="n">xi</span><span class="p">,</span><span class="n">tr</span><span class="p">,</span><span class="n">ti</span><span class="p">)</span>
<span class="w">      </span><span class="k">call </span><span class="n">mat_wlog</span><