class="info ">
Arc cosine.  The argument must fall within the range <code class="code">[-1.0, 1.0]</code>.
    Result is in radians and is between <code class="code">0.0</code> and <code class="code">pi</code>.<br>
</div>

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