n class="w"> </span><span class="n">q</span><span class="o">&lt;=</span><span class="mf">0.5_wp</span><span class="w"> </span><span class="p">)</span><span class="w"> </span><span class="n">X</span><span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">log</span><span class="p">(</span><span class="mf">2.0_wp</span><span class="o">*</span><span class="n">q</span><span class="p">)</span>
<span class="w">