In [1]:

    

import numpy as np


    

In [2]:

    

a_inf = np.array([-np.inf, 0, np.inf])
print(a_inf)


    

    




[-inf   0.  inf]

In [3]:

    

print(np.isinf(a_inf))


    

    




[ True False  True]

In [4]:

    

print(a_inf == np.inf)


    

    




[False False  True]

In [5]:

    

print(a_inf == -np.inf)


    

    




[ True False False]