he natural logs for this collection of values.
 <p>
 Uses <a href="../../../../../../../org/apache/commons/math3/util/FastMath.html#log(double)"><code>FastMath.log(double)</code></a> to compute the logs.
 Therefore,
 <ul>
 <li>If any of values are &lt; 0, the result is <code>NaN.</code></li>
 <li>If all values are non-negative and less than
 <code>Double.POSITIVE_INFINITY</code>,  but at least one value is 0, the
 result is <code>Double.NEGATIVE_INFINITY.</code></li>
 <li>If both <code>Double.POSITIVE_INFIN