/span><span class="p">)).</span><span class="nb">and</span><span class="p">.</span><span class="w"> </span><span class="p">(</span><span class="n">beta</span><span class="p">.</span><span class="n">eq</span><span class="p">.</span><span class="n">one</span><span class="p">)))</span><span class="w"> </span><span class="k">return</span><span class="w"></span>
<span class="c">!</span>
<span class="c">!     And if  alpha.eq.zero.</span>
<span class="c">!</span>
<span class="w">      </span><span class="k">if</s