lass="p">)</span>
    <span class="n">sec_digs_in_f2d</span> <span class="o">=</span> <span class="n">array</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">10</span><span class="p">))</span> <span class="o">*</span> <span class="mi">9</span><span class="p">)</span>
    <span class="n">exp</span> <span class="o">=</span> <span class="n">array</span><span class="p">([</span><span class="n">exp_f2d</span><sp