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27 <a name="math_toolkit.acos"></a><a class="link" href="acos.html" title="acos">acos</a>
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30 <a name="math_toolkit.acos.h0"></a>
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33 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">math</span><span class="special">/</span><span class="identifier">complex</span><span class="special">/</span><span class="identifier">acos</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
36 <a name="math_toolkit.acos.h1"></a>
37 <span class="phrase"><a name="math_toolkit.acos.synopsis"></a></span><a class="link" href="acos.html#math_toolkit.acos.synopsis">Synopsis:</a>
39 <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></span>
40 <span class="identifier">std</span><span class="special">::</span><span class="identifier">complex</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="identifier">acos</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">complex</span><span class="special"><</span><span class="identifier">T</span><span class="special">>&</span> <span class="identifier">z</span><span class="special">);</span>
43 <span class="bold"><strong>Effects: </strong></span> returns the inverse cosine of the
47 <span class="bold"><strong>Formula: </strong></span> <span class="inlinemediaobject"><img src="../../images/acos.png"></span>
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