With the help of Numpy matrix.nonzero() method, we can get the index value of nonzero value from given matrix. It always gives us 2-D array.
Syntax :
matrix.nonzero()Return : Return index value of nonzero from given matrix
Example #1 :
In this example we can see that we are able to get the index value of nonzero from a given matrix with the help of method matrix.nonzero().
# import the important module in python import numpy as np           # make matrix with numpy gfg = np.matrix('[64, 1; 0, 3]')           # applying matrix.nonzero() method neveropen = gfg.nonzero()     print(neveropen) |
Output:
(array([0, 0, 1]), array([0, 1, 1]))
Example #2 :
# import the important module in python import numpy as np           # make a matrix with numpy gfg = np.matrix('[11, 0, 3; 34, 0, 65; 7, 68, 0]')           # applying matrix.nonzero() method neveropen = gfg.nonzero()     print(neveropen) |
Output:
(array([0, 0, 1, 1, 2, 2]), array([0, 2, 0, 2, 0, 1]))
