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  <span><span>(<span><a href="Algodiff/index.html#type-t">Algodiff.t</a> <span class="arrow">&#45;&gt;</span></span> <span><span><a href="Algodiff/index.html#type-t">Algodiff.t</a> array</span> array</span> * <span><span><a href="Algodiff/index.html#type-t">Algodiff.t</a> array</span> array</span>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<span><span><span><a href="Algodiff/index.html#type-t">Algodiff.t</a> array</span> array</span> <span 