n><span class="n">an</span><span class="o">-</span><span class="mf">2.0_wp</span><span class="p">)</span>
<span class="c">!</span>
<span class="c">!     CHECK THE INPUT ARGUMENTS FOR ERRORS</span>
<span class="c">!</span>
<span class="w">      </span><span class="k">IF</span><span class="w"> </span><span class="p">(</span><span class="w"> </span><span class="n">N</span><span class="o">&lt;</span><span class="n">ilower</span><span class="w"> </span><span class="p">.</span><span class="nb">OR</span><span clas