small><i>Available since 2.12</i></small>
<a id="index-entry-fdea6af1db60962c86c57847a99b985330592f02" class="index-entry"></a> <!-- real; exponential_lupdf; (reals y | reals beta); -->
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<p><code>real</code> <strong><code>exponential_lupdf</code></strong><code>(reals y | reals beta)</code><br> The log of the exponential density of y given inverse scale beta dropping constant additive terms</p>
<small><i>Available since 2.25</i></small>
<a id="index-entry-ad4cd5c7ba3c05b884083c95b23a472cffbc1a00" clas