</span> <span class="n">include</span><span class="p">,</span> <span class="n">exclude</span><span class="p">)</span>
            <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">derivatives_single</span><span class="p">(</span>
                <span class="n">system</span><span class="p">,</span>
                <span class="n">centers</span><span class="p">,</span>
                <span class="n">indices</span><span class="p">,</span>
                <span 