gt; 1</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">tau</span></code>   - Time Delay, a positive integer</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">Logx</span></code>  - Logarithm base, a positive scalar</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">Plotx</span></code> - When <code class="docutils literal notranslate"><span class="pre">Plotx</span> <span class="pre">==</span> <span class="pre">true</span></code>,