degrees of freedom nu</p>
<small><i>Available since 2.12</i></small>
<a id="index-entry-9cccc8fcca1c8dd1b172176bd72c946a84d611eb" class="index-entry"></a> <!-- real; chi_square_lupdf; (reals y | reals nu); -->
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<p><code>real</code> <strong><code>chi_square_lupdf</code></strong><code>(reals y | reals nu)</code><br> The log of the Chi-square density of y given degrees of freedom nu dropping constant additive terms</p>
<small><i>Available since 2.25</i></small>
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