.)</i>
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</dt>
<dd><p>Function to draw Bode phase plots.
</p>
<p>Examples (1 through 7 from 
</p><pre class="example"><a href="http://www.swarthmore.edu/NatSci/echeeve1/Ref/Bode/BodeHow.html">http://www.swarthmore.edu/NatSci/echeeve1/Ref/Bode/BodeHow.html</a>,
</pre><p>8 from Ron Crummett):
</p><pre class="example">(%i1) load(&quot;bode&quot;)$

(%i2) H1 (s) := 100 * (1 + s) / ((s + 10) * (s + 100))$

(%i3) bode_phase (H1 (s), [w, 1/1000, 1000])$

(%i4) H2 (s) := 1 / (1 + s/omega0)$

(%