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−<!-- $Id: constructor_examples_pole_content.html,v 1.2 2008/03/30 20:40:04 ingo Exp $ -->
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−
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−<!-- -------------------------------------------------- -->
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−<!-- --------------- BEGIN CONTENT FILE --------------- -->
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−<!-- -------------------------------------------------- -->
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−
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−<!-- --------------- Link box: begin --------------- -->
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−<table border="0" summary="Simple list" class="simplelist_nottable_last">
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−  <tr>
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−    <td>
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−      <a href="constructor_examples_pole.html#empty">Construct empty POLE object</a>
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−    </td>
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−  </tr>
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−  <tr>
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−    <td>
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−      <a href="constructor_examples_pole.html#xml_file">Construct a POLE object by loading the object from a file</a>
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−    </td>
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−  </tr>
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−  <tr>
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−    <td>
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−      <a href="constructor_examples_pole.html#real">Construct a POLE object with a real pole</a>
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−    </td>
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−  </tr>
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−  <tr>
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−    <td>
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−      <a href="constructor_examples_pole.html#complex">Construct a POLE object with a complex pole</a>
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−    </td>
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−  </tr>
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−</table>
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−
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−<p>Poles are specified by in the LTPDA Toolbox by a frequency, f, and (optionally) a quality factor, Q.</p>
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−<!-- --------------- Link box: end --------------- -->
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−
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−<!-- --------------- NEXT EXAMPLE --------------- -->
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−
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−<hr>
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−<h2 class="title"><a name="empty"></a>Construct empty POLE object</h2>
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−<p>The following example creates an empty pole object</p>
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−<div class="fragment"><pre class="programlisting">
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−p = pole()
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−---- pole 1 ----
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−None: NaN Hz
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−----------------
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−</pre></div>
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−
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−<!-- --------------- NEXT EXAMPLE --------------- -->
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−
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−<hr>
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−<h2 class="title"><a name="xml_file"></a>Construct a POLE object by loading the object from a file</h2>
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−<p>The following example creates a new pole object by loading the pole object from disk.</p>
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−<div class="fragment"><pre class="programlisting">
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−p = pole(<span class="string">'pole.mat'</span>)
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−p = pole(<span class="string">'pole.xml'</span>)
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−</pre></div>
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−
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−<!-- --------------- NEXT EXAMPLE --------------- -->
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−
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−<hr>
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−<h2 class="title"><a name="real"></a>Construct a POLE object with a real pole</h2>
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−<p>The following code fragment creates a real pole at 1Hz:</p>
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−<div class="fragment"><pre class="programlisting">
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−p = pole(1)
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−---- pole 1 ----
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−real pole: 1 Hz
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−----------------
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−</pre></div>
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−<p>It is also possible to use a parameter list (PLIST) object</p>
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−<div class="fragment"><pre class="programlisting">
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−pl = plist(<span class="string">'f'</span>, 1);
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−
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−p = pole(pl)
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−---- pole 1 ----
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−real pole: 1 Hz
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−----------------
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−</pre></div>
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−
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−<!-- --------------- NEXT EXAMPLE --------------- -->
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−
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−<hr>
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−<h2 class="title"><a name="complex"></a>Construct a POLE object with a complex pole</h2>
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−<p>To create a complex pole, you can specify a quality factor. For example</p>
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−<div class="fragment"><pre class="programlisting">
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−p = pole(10,4)
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−---- pole 1 ----
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−complex pole: 10 Hz, Q=4 [-0.0019894+0.015791i]
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−----------------
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−</pre></div>
+
−<p>It is also possible to use a parameter list (PLIST) object</p>
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−<div class="fragment"><pre class="programlisting">
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−pl = plist(<span class="string">'f'</span>, 10, <span class="string">'q'</span>, 4);
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−
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−pole(pl)
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−---- pole 1 ----
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−complex pole: 10 Hz, Q=4 [-0.0019894+0.015791i]
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−----------------
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−</pre></div>
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−
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−<!-- ------------------------------------------------ -->
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