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<p><code>real</code> <strong><code>inv_chi_square_lupdf</code></strong><code>(reals y | reals nu)</code><br> The log of the inverse Chi-square density of y given degrees of freedom nu dropping constant additive terms</p>
<small><i>Available since 2.25</i></small>
<a id="index-entry-a5b53196a941f74078d28a76d43875006ecaa749" class="index-entry"></a> <!-- real; inv_chi_square_cdf; (reals y | reals nu); -->
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<p><code>real</code> <strong><code>inv_chi_square_cdf</code></strong><code>(reals