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numpy.diagflat() in Python

Python | numpy.fill_diagonal() method

Last Updated : 27 Sep, 2019

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With the help of numpy.fill_diagonal() method, we can get filled the diagonals of numpy array with the value passed as the parameter in numpy.fill_diagonal() method.

Syntax : numpy.fill_diagonal(array, value)
Return : Return the filled value in the diagonal of an array.

Example #1 :
In this example we can see that by using numpy.fill_diagonal() method, we are able to get the diagonals filled with the values passed as parameter.

   # import numpy 
import numpy as np 
  
# using numpy.fill_diagonal() method 
array = np.array([[1, 2], [2, 1]]) 
np.fill_diagonal(array, 5) 
  
print(array) 
 
  

Output :

[[5 2]
[2 5]]

Example #2 :

   # import numpy 
import numpy as np 
  
# using numpy.fill_diagonal() method 
array = np.zeros((3, 3), int) 
np.fill_diagonal(array, 1) 
  
print(array) 
 
  

Output :

[[1 0 0]
[0 1 0]
[0 0 1]]

numpy.diagflat() in Python

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Article Tags :

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Practice Tags :

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