eryksun added the comment:
decimal.Decimal 'floor division' is integer division that truncates toward 0
(see 9.4.2).
>>> Decimal('-0.5').__floor__()
-1
>>> Decimal('-0.5').__floordiv__(1)
Decimal('-0')
Numpy 1.8.1:
>>> np.float32(-0.5) // 1
-1.0
>>> np.float32(-0.5) // float('inf')
-0.0
>>> np.array([-0.5]) // 1
array([-1.])
>>> np.array([-0.5]) // float('inf')
array([-0.])
----------
nosy: +eryksun
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