(s) y in <span class="math inline">\(l:u\)</span>
dropping constant additive terms.</p>
<!-- real; discrete_range_cdf; (ints y, ints l, ints u); -->
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<p><code>real</code> <strong><code>discrete_range_cdf</code></strong><code>(ints y, ints l, ints u)</code><br>
The discrete range cumulative distribution function
for the given y, lower and upper bounds.</p>
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<p><code>real</code> <strong><code>discrete_range_lcdf</code></strong><code>