ber rounded to
      a whole number in the direction of Infinity.
    </p>
    <pre>
x = new BigNumber(1.3)
x.ceil()                      // '2'
y = new BigNumber(-1.8)
y.ceil()                      // '-1'</pre>



    <h5 id="floor">
      floor<code class='inset'>.floor() &rArr;
      <i>BigNumber</i></code>
    </h5>
    <p>
      Returns a BigNumber whose value is the value of this BigNumber rounded to
      a whole number in the direction of -Infinity.
    </p>
    <pre>
x = new BigNumber(1.8)
x.floor