sult is returned as a float.</p>
</div>
</div>

<pre><span id="VALcopysign"><span class="keyword">val</span> copysign</span> : <code class="type">float -&gt; float -&gt; float</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">copysign&nbsp;x&nbsp;y</code> returns a float whose absolute value is that of <code class="code">x</code>
    and whose sign is that of <code class="code">y</code>.  If <code class="code">x</code> is <code class="code">nan</code>, returns <code class="code">