numpy.floor_divide() in Python

numpy.floor_divide(arr1, arr2, /, out = None, where = True, casting = 'same_kind', order = 'K', dtype = None) : Array element from first array is divided by the elements from second array(all happens element-wise). Both arr1 and arr2 must have same shape. It is equivalent to the Python // operator and pairs with the Python % (remainder), function so that b = a % b + b * (a // b) up to roundoff. Parameters : 

arr1     : [array_like]Input array or object which works as numerator.

arr2     : [array_like]Input array or object which works as denominator. 

out      : [ndarray, None, 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.

Return : 

An array with floor(x1 / x2)

  Code 1 : arr1 divided by arr2 

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

# input_array 
arr1 = [2, 2, 2, 2, 2] 
arr2 = [2, 3, 4, 5, 6] 
print ("arr1         : ", arr1) 
print ("arr1         : ", arr2) 

# output_array 
out = np.floor_divide(arr1, arr2) 
print ("\nOutput array : ", out) 

Output : 

arr1         :  [2, 2, 2, 2, 2]
arr1         :  [2, 3, 4, 5, 6]

Output array :  [1 0 0 0 0]

  Code 2 : elements of arr1 divided by divisor 

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

# input_array 
arr1 = [2, 7, 3, 11, 4] 
divisor = 3
print ("arr1         : ", arr1) 

# output_array 
out = np.floor_divide(arr1, divisor) 
print ("\nOutput array : ", out) 

Output : 

arr1         :  [2, 7, 3, 11, 4]

Output array :  [0 2 1 3 1]

  Code 3 : floor_divide handling results if arr2 has -ve elements 

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

# input_array 
arr1 = [2, 6, 21, 21, 12] 
arr2 = [2, 3, 4, -3, 6] 
print ("arr1         : ", arr1) 
print ("arr2         : ", arr2) 

# output_array 
out = np.floor_divide(arr1, arr2) 
print ("\nOutput array : ", out) 

Output : 

arr1         :  [2, 6, 21, 21, 12]
arr2         :  [2, 3, 4, -3, 6]

Output array :  [ 1  2  5 -7  2]

Time Complexity: O(1)

Auxiliary Space: O(1)

References : https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.floor_divide.html .

mohit gupta_omg :)

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• Python numpy-Mathematical Function

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