s="n">e</span><span class="p">,</span><span class="w"> </span><span class="n">e2</span><span class="p">,</span><span class="w"> </span><span class="n">tau</span><span class="p">)</span>
<span class="w">      </span><span class="k">import  </span><span class="n">int32</span><span class="p">,</span><span class="w"> </span><span class="n">real64</span>
<span class="w">      </span><span class="kt">integer</span><span class="p">(</span><span class="nb">kind</span><span class="o">=</span><span class="n">int32</s