numpy.isinf(array [, out])

# Python Program illustrating
# numpy.isinf() method
  
import numpy as geek
 
print("Finite : ", geek.isinf(1), "\n")
 
print("Finite : ", geek.isinf(0), "\n")
 
# not a number
print("Finite : ", geek.isinf(geek.nan), "\n")
 
#  infinity
print("Finite : ", geek.isinf(geek.inf), "\n")
 
print("Finite : ", geek.isinf(geek.NINF), "\n")
 
x = geek.array([-geek.inf, 0., geek.inf])
y = geek.array([2, 2, 2])
print("Checking for infinity : ", geek.isinf(x, y))

Finite :  False 

Finite :  False 

Finite :  False 

Finite :  True 

Finite :  True 

Checking for infinity :  [1 0 1]

# Python Program illustrating
# numpy.isinf() method
   
import numpy as geek
  
# Returns True/False value for each element
b = geek.arange(8).reshape(2, 4)
                
print("\n",b)
print("\nIs Infinity : \n", geek.isinf(b))
 
# geek.inf  : Positive Infinity
# geek.NINF : negative Infinity
b = [[geek.inf],
     [geek.NINF]]
print("\nIs Infinity : \n", geek.isinf(b))

 [[0 1 2 3]
 [4 5 6 7]]

Is Infinity : 
 [[False False False False]
 [False False False False]]

Is Infinity : 
 [[ True]
 [ True]]