/code><ol><li id="type-t.NNZ" class="def variant constructor anchored"><a href="#type-t.NNZ" class="anchor"></a><code><span>| </span><span><span class="constructor">NNZ</span> <span class="keyword">of</span> int</span></code></li></ol></div><div class="spec-doc"><p>Can be used to later access a non-zero element of a compressed matrix in constant time</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-pp"><a href="#val-pp" class="anchor"></a><code><span><span class="keyword">val</