[GitHub] [incubator-mxnet] xidulu opened a new pull request #17778: Add convenient method for numerical Ops under Numpy namespace

[GitBox <gi...@apache.org>]

xidulu opened a new pull request #17778: Add convenient method for numerical Ops under Numpy namespace
URL: https://github.com/apache/incubator-mxnet/pull/17778
 
 
   ## Description ##
   This PR adds convenient method for **numerical** Ops (e.g. `exp`) under Numpy namespace (i.e. numpy extension ops not included).
   
   This modification will significantly mitigate your pain of writing endless `F.np` in the hybrid_block.
   
   Take sampling from gumbel distribution as an example
   ```python
   # Before
   def gumbel_sample(pi):
       eps = F.np.random.uniform(F.np.zeros_like(pi))
       L = -F.np.log(-F.np.log(eps)) + F.np.log(pi)
   
   # After
   def gumbel_sample(pi):
       eps = F.np.random.uniform(F.np.zeros_like(pi)) # I wish this line get shortened in the future.
       L = -(-eps.log()).log() + pi.log()
   ```
   
   
   

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