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numpy.ufunc.ntypes
attribute
- ufunc.ntypes
- 
    The number of types. The number of numerical NumPy types - of which there are 18 total - on which the ufunc can operate. See also Examples>>> np.add.ntypes 18 >>> np.multiply.ntypes 18 >>> np.power.ntypes 17 >>> np.exp.ntypes 7 >>> np.remainder.ntypes 14
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 https://numpy.org/doc/1.19/reference/generated/numpy.ufunc.ntypes.html