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
>>> 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://docs.scipy.org/doc/numpy-1.17.0/reference/generated/numpy.ufunc.ntypes.html