Open In App

numpy.true_divide() in Python

Last Updated : 29 Nov, 2018
Comments
Improve
Suggest changes
Like Article
Like
Report
(arr1, arr22, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, ufunc 'true_divide') : 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. Returns true division element-wise. Python traditionally follow 'floor division'. Regardless of input type, true division adjusts answer to its best. "//" is floor division operator. "/" is true division operator. 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 :
If inputs are scalar then scalar; otherwise array with arr1 / arr2(element- wise) 
i.e. true division
  Code 1 : arr1 divided by arr2 Python
# Python program explaining
# true_divide() function
import numpy as np

# input_array
arr1 = [6, 7, 2, 9, 1]
arr2 = [2, 3, 4, 5, 6]
print ("arr1         : ", arr1)
print ("arr1         : ", arr2)

# output_array
out = np.true_divide(arr1, arr2)
print ("\nOutput array : \n", out)
Output :
arr1         :  [6, 7, 2, 9, 1]
arr1         :  [2, 3, 4, 5, 6]

Output array : 
 [ 3.          2.33333333  0.5         1.8         0.16666667]
  Code 2 : elements of arr1 divided by divisor Python
# Python program explaining
# true_divide() function
import numpy as np

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

# output_array
out = np.true_divide(arr1, divisor)
print ("\nOutput array : ", out)
Output :
arr1         :  [2, 7, 3, 11, 4]

Output array :  [ 0.66666667  2.33333333  1.          3.66666667  1.33333333]
  Code 3 : Comparison between floor_division(//) and true-division(/) Python
# Python program explaining
# true_divide() function
import numpy as np

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

# output_array
out = np.floor_divide(arr1, arr2)
out_arr = np.true_divide(arr1, arr2) 
print ("\nOutput array with floor divide : \n", out)
print ("\nOutput array with true divide  : \n", out_arr)


print ("\nOutput array with floor divide(//) : \n", arr1//arr2)
print ("\nOutput array with true divide(/)   : \n", arr1/arr2)
Output :
arr1         :  [0 1 2 3 4]
arr1         :  [2, 3, 4, 5, 6]

Output array with floor divide : 
 [0 0 0 0 0]

Output array with true divide  : 
 [ 0.          0.33333333  0.5         0.6         0.66666667]

Output array with floor divide(//) : 
 [0 0 0 0 0]

Output array with true divide(/)   : 
 [ 0.          0.33333333  0.5         0.6         0.66666667]
References : https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.floor_divide.html .

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