an class="w"> </span><span class="n">Numcla</span>
<span class="w">            </span><span class="n">ai</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">i</span>
<span class="w">            </span><span class="n">cmin</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">xmin</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="n">ai</span><span class="o">-</spa