arr1 : [array_like]Input array. arr2 : [array_like]Input array. out : [ndarray, optional]Output array with same dimensions as Input array, placed with result. **kwargs : allows you to pass keyword variable length of argument to a function. It is used when we want to handle named argument in a function. where : [array_like, optional]True value means to calculate the universal functions(ufunc) at that position, False value means to leave the value in the output alone.

An array with Boolean results of arr1 OR arr2 element-wise(of the same shape).  

# Python program explaining
# logical_or() function
import numpy as np

# input
arr1 = [1, 3, False, 4]
arr2 = [3, 0, True, False]

# output
out_arr = np.logical_or(arr1, arr2)

print ("Output Array : ", out_arr)

Output Array :  [ True  True  True  True]

# Python program explaining
# logical_or() function
import numpy as np

# input
arr1 = [8, 2, False, 4]
arr2 = [3, 0, False, False, 8]

# output
out_arr = np.logical_or(arr1, arr2)

print ("Output Array : ", out_arr)

ValueError: operands could not be broadcast together with shapes (4,) (5,)