title: [[[1., 2., 3.]], [[7., 8., 9.]]] # a rank 3 tensor with shape [2, 1, 3]
body: <p>Can someone explain to me why does this example have a shape of [2,1,3], i just don't see it?</p>
  
  <p>[[[1., 2., 3.]], [[7., 8., 9.]]] # a rank 3 tensor with shape [2, 1, 3]</p>