vectorization.html#prng-vectorization">vectorized PRNG functions</a>.</p>
</div>
<div id="numerical-stability" class="section level3">
<h3><span class="header-section-number">19.1.4</span> Numerical Stability</h3>
<p>Evaluating the Von Mises distribution for <span class="math inline">\(\kappa &gt; 100\)</span> is numerically unstable in the current implementation. Nathanael I. Lichti suggested the following workaround on the Stan users group, based on the fact that as <span class="math inline">\(\kappa \rig