../../../../../org/apache/commons/math3/analysis/differentiation/UnivariateDifferentiableFunction.html" title="interface in org.apache.commons.math3.analysis.differentiation">UnivariateDifferentiableFunction</a>, <a href="../../../../../../org/apache/commons/math3/analysis/DifferentiableUnivariateFunction.html" title="interface in org.apache.commons.math3.analysis">DifferentiableUnivariateFunction</a></pre>
<div class="block"><a href="http://en.wikipedia.org/wiki/Sigmoid_function">
  Sigmoid</a> function.
 