Open In App

numpy.divide() in Python

Last Updated : 29 Nov, 2018
Comments
Improve
Suggest changes
Like Article
Like
Report
numpy.divide(arr1, arr2, out = None, where = True, casting = 'same_kind', order = 'K', dtype = None) : Array element from first array is divided by elements from second element (all happens element-wise). Both arr1 and arr2 must have same shape and element in arr2 must not be zero; otherwise it will raise an error. Parameters :
arr1 : [array_like]Input array or object which works as dividend. arr2 : [array_like]Input array or object which works as divisor. 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.
Return :
An array with arr1/arr2(element-wise) as elements of output array.
  Code 1 : arr1 divide by arr2 elements Python
# Python program explaining
# divide() function
import numpy as np

# input_array
arr1 = [2, 27, 2, 21, 23]
arr2 = [2, 3, 4, 5, 6]
print ("arr1         : ", arr1)
print ("arr2         : ", arr2)

# output_array
out = np.divide(arr1, arr2)
print ("\nOutput array : \n", out)
Output :
arr1         :  [2, 27, 2, 21, 23]
arr2         :  [2, 3, 4, 5, 6]

Output array : 
 [ 1.          9.          0.5         4.2         3.83333333]
  Code 2 : elements of arr1 divided by divisor Python
# Python program explaining
# divide() function
import numpy as np

# input_array
arr1 = [2, 27, 2, 21, 23]
divisor = 3
print ("arr1         : ", arr1)

# output_array
out = np.divide(arr1, divisor)
print ("\nOutput array : \n", out)
Output :
arr1         :  [2, 27, 2, 21, 23]

Output array : 
 [ 0.66666667  9.          0.66666667  7.          7.66666667]
  Code 3 : warning if arr2 has element = 0 Python
# Python program explaining
# divide() function
import numpy as np

# input_array
arr1 = [2, 27, 2, 21, 23]
arr2 = [2, 3, 0, 5, 6]
print ("arr1         : ", arr1)
print ("arr2         : ", arr2)

# output_array
out = np.divide(arr1, arr2)
print ("\nOutput array : ", out)
Output :
arr1         :  [2, 27, 2, 21, 23]
arr2         :  [2, 3, 0, 5, 6]

Output array :  [ 1.          9.                 inf  4.2         3.83333333]
RuntimeWarning: divide by zero encountered in true_divide
  out = np.power(arr1, arr2)
References : https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.divide.html .

Next Article

Similar Reads

pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy