nd within the bodies of
user-defined functions with names ending in <code>_rng</code>.</p>
</div>
<div id="probability-function-naming" class="section level3 unnumbered">
<h3>Probability function naming</h3>
<p>A probability function literal must have one of the following
suffixes: <code>_lpdf</code>, <code>_lpmf</code>, <code>_lcdf</code>, or <code>_lccdf</code>.</p>
</div>
<div id="algebraic-solver-argument-types-and-origins" class="section level3 unnumbered">
<h3>Algebraic solver argument types and origi