tribution"><code>TDistribution</code></a>) or <code>Double.NaN</code> if it
 is not defined</dd></dl>
</li>
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<h4>getSupportLowerBound</h4>
<pre>public&nbsp;double&nbsp;getSupportLowerBound()</pre>
<div class="block">Access the lower bound of the support. This method must return the same
 value as <code>inverseCumulativeProbability(0)</code>. In other words, this
 method must return
 <p><code>inf {x in R | P(