f points is less than 2.</dd>
<dd><code><a href="../../../../../../org/apache/commons/math3/exception/NonMonotonicSequenceException.html" title="class in org.apache.commons.math3.exception">NonMonotonicSequenceException</a></code> - if <code>x</code> is not sorted in
 strictly increasing order.</dd></dl>
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<h4>computeDividedDifference</h4>
<pre>protected static&nbsp;double[]&nb