```
======================================================================

FAIL: test_ndarray.test_ndarray_elementwise

----------------------------------------------------------------------

Traceback (most recent call last):

  File "C:\Anaconda3\envs\py3\lib\site-packages\nose\case.py", line 197, in 
runTest

    self.test(*self.arg)

  File 
"C:\jenkins_slave\workspace\ut-python-cpu@2\tests\python\unittest\common.py", 
line 172, in test_new

    orig_test(*args, **kwargs)

  File 
"C:\jenkins_slave\workspace\ut-python-cpu@2\tests\python\unittest\test_ndarray.py",
 line 133, in test_ndarray_elementwise

    check_with_uniform(lambda x, y: x / y, 2, dim, type_list=real_type)

  File 
"C:\jenkins_slave\workspace\ut-python-cpu@2\tests\python\unittest\test_ndarray.py",
 line 59, in check_with_uniform

    assert_almost_equal(out1, out2, rtol=2e-3)

  File 
"C:\jenkins_slave\workspace\ut-python-cpu@2\windows_package\python\mxnet\test_utils.py",
 line 491, in assert_almost_equal

    raise AssertionError(msg)

AssertionError: 

Items are not equal:

Error inf exceeds tolerance rtol=0.002000, atol=0.000000.  Location of maximum 
error:(58,), a=-0.000009, b=-0.000009

 a: array([-1.75488281,  0.16320801, -1.10449219, ...,  2.        ,

       -0.9921875 ,  0.08856201], dtype=float16)

 b: array([-1.75488281,  0.16333008, -1.10449219, ...,  2.        ,

       -0.9921875 ,  0.08862305], dtype=float16)

-------------------- >> begin captured logging << --------------------

common: INFO: Setting test np/mx/python random seeds, use 
MXNET_TEST_SEED=1627488533 to reproduce.

--------------------- >> end captured logging << ---------------------
```
>From the error log it seems like there's actually no big difference between 
>reference and actual result, should be a tolerance problem (atol is 1e-20 from 
>the log), submitting a hot fix.

[ Full content available at: 
https://github.com/apache/incubator-mxnet/issues/12312 ]
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