nfo-desc">
<p><code class="code">compare&nbsp;x&nbsp;y</code> returns <code class="code">0</code> if <code class="code">x</code> is equal to <code class="code">y</code>, a negative integer if <code class="code">x</code>
    is less than <code class="code">y</code>, and a positive integer if <code class="code">x</code> is greater than
    <code class="code">y</code>. <code class="code">compare</code> treats <code class="code">nan</code> as equal to itself and less than any other float
    value.  This treatm