s="index-entry"></a> <!-- real; exponential_cdf; (reals y | reals beta); -->
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<p><code>real</code> <strong><code>exponential_cdf</code></strong><code>(reals y | reals beta)</code><br> The exponential cumulative distribution function of y given inverse scale beta</p>
<small><i>Available since 2.0</i></small>
<a id="index-entry-0677eab24885c7279772fbf058f8cb58eb12d88a" class="index-entry"></a> <!-- real; exponential_lcdf; (reals y | reals beta); -->
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<p><code>real</code> <strong><code>exponentia