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    <h2><span class="anchor" id="src"></span>Source Code</h2>
    <div class="highlight"><pre><span></span>  <span class="k">FUNCTION </span><span class="n">fRE_HxPR</span><span class="p">(</span><span class="n">eta</span><span class="p">,</span><span class="n">g</span><span class="p">)</span>
    <span class="kt">REAL</span><span class="p">(</span><span class="n">rp</span><span class="p">),</span> <span class="k">INTENT</span><span class="p">(</span><span class="n">