
 <dt><b><tt>trigsimp(a)</tt></b></dt>
	<dd> Is a trig simplification function which
  replaces <tt>tan</tt>, <tt>sec</tt>, etc., by their <tt>sin</tt> and <tt>
    cos</tt> equivalents.  It also uses the identity <tt>sin</tt><tt>(</tt><tt>)</tt><sup><tt>2</tt></sup> <tt>+</tt> <tt>cos</tt><tt>(</tt><tt>)</tt><sup><tt>2</tt></sup><tt> = </tt><tt>1</tt>.</dd>
</dl>

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<hr /><h3>Footnotes:</h3>

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<a name="tthFtNtAAB"></a><a href="#tthFrefAAB"><sup>1</sup>