n class="n">nddata</span><span class="p">(</span><span class="n">r_</span><span class="p">[</span><span class="mi">0</span><span class="p">:</span><span class="mi">4</span><span class="p">],</span><span class="s1">&#39;a&#39;</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">a</span><span class="o">*</span><span class="n">b</span>
<span class="go">[0, 1, 4, 9]</span>
<span class="go">                +/-None</span>
<span class="go">        dimlabels=[&#39;a&#39;]</span>
<spa