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numpy.diag() in Python

Python | Numpy matrix.diagonal()

Last Updated : 12 Apr, 2019

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With the help of Numpy matrix.diagonal() method, we are able to find a diagonal element from a given matrix and gives output as one dimensional matrix.

Syntax : matrix.diagonal()

Return : Return diagonal element of a matrix

Example #1 :
In this example we can see that with the help of matrix.diagonal() method we are able to find the elements in a diagonal of a matrix.

   # import the important module in python 
import numpy as np 
         
# make matrix with numpy 
gfg = np.matrix('[6, 2; 3, 4]') 
         
# applying matrix.diagonal() method 
geeks = gfg.diagonal() 
   
print(geeks)

Output:

  [[6 4]]

Example #2 :

   # import the important module in python 
import numpy as np 
         
# make a matrix with numpy 
gfg = np.matrix('[1, 2, 3; 4, 5, 6; 7, 8, 9]') 
         
# applying matrix.diagonal() method 
geeks = gfg.diagonal() 
   
print(geeks)

Output:

  [[1 5 9]]

numpy.diag() in Python

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Article Tags :

Python
Python numpy-Matrix Function
Python-numpy

Practice Tags :

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