title: How to create 3D numpy array?
body: <p>I am trying to create a 3D array with numpy with dimensions [282][282][256]. I have tried </p>
  
  <pre><code>np.zeros((282,282,256))
  </code></pre>
  
  <p>but this is not giving me the correct width and height. How do I create such an array that has 282 width and height, and each cell is an array of 256 elements?</p>