Python | Numpy matrix.getI()

With the help of Numpy matrix.getI() method, we can get the multiplicative inverse of the same size as of our given matrix.

Syntax : matrix.getI()

Return : Return multiplicative inverse of given matrix

Example #1 :
In this example we can see that we are able to get the multiplicative inverse with the help of method matrix.getI().

filter_none

edit
close

play_arrow

link
brightness_4
code

# import the important module in python
import numpy as np
          
# make matrix with numpy
gfg = np.matrix('[6, 1; 2, 3]')
          
# applying matrix.getI() method
geeks = gfg.getI()
    
print(geeks)

chevron_right


Output:

[[ 0.1875 -0.0625]
 [-0.125   0.375 ]]

Example #2 :

filter_none

edit
close

play_arrow

link
brightness_4
code

# 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.getI() method
geeks = gfg.getI()
    
print(geeks)

chevron_right


Output:

[[ -4.50359963e+15   9.00719925e+15  -4.50359963e+15]
 [  9.00719925e+15  -1.80143985e+16   9.00719925e+15]
 [ -4.50359963e+15   9.00719925e+15  -4.50359963e+15]]


My Personal Notes arrow_drop_up

Recommended Posts: