pan><span class="n">del</span><span class="p">,</span><span class="w"> </span><span class="n">F</span><span class="p">,</span><span class="w"> </span><span class="n">fest</span><span class="p">,</span><span class="w"> </span><span class="n">fmin</span><span class="p">,</span><span class="w"> </span><span class="n">hold</span><span class="p">,</span><span class="w"> </span><span class="n">pi</span><span class="p">,</span><span class="w"> </span><span class="nb">range</span><span class="p">,</span><span class