de> is the number of values that will be reduced. Reduction occurs independently for each of the <code class="computeroutput">n</code> values referenced by <code class="computeroutput">in_values</code>, e.g., calling reduce on an array of <code class="computeroutput">n</code> values is like calling <code class="computeroutput">reduce</code> <code class="computeroutput">n</code> separate times, one for each location in <code class="computeroutput">in_values</code> and <code class="computeroutput">out_values<