> install nx

<span class="comment"># Try it</span>
<span class="keyword">open</span> <span class="type">Nx</span>

<span class="keyword">let</span> () <span class="operator">=</span> 
  <span class="keyword">let</span> <span class="keyword">x</span> <span class="operator">=</span> <span class="function">rand</span> <span class="type">float32</span> [<span class="operator">|</span><span class="number">3</span>; <span class="number">3</span><span class="operator">|</span>] <span class="keyword">in</span>
  <