Python| numpy matrix.getI()

在Numpy matrix.getI()方法的帮助下，我们可以获得与给定矩阵相同大小的乘法逆。

Syntax : matrix.getI()

Return : Return multiplicative inverse of given matrix

示例 #1：
在这个例子中，我们可以看到我们能够在方法matrix.getI()的帮助下得到乘法逆。

# 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)

输出：

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

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

输出：

[[ -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]]