ord">val</span> asin</span> : <code class="type">float -&gt; float</code></pre><div class="info ">
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<p>Arc sine.  The argument must fall within the range <code class="code">[-1.0,&nbsp;1.0]</code>.
    Result is in radians and is between <code class="code">-pi/2</code> and <code class="code">pi/2</code>.</p>
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<pre><span id="VALatan"><span class="keyword">val</span> atan</span> : <code class="type">float -&gt; float</code></pre><div class="info ">
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