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python | num py matrix . geti()

哎哎哎:# t0]https://www . geeksforgeeks . org/python-num py 矩阵 geti/

借助**Numpy matrix.getI()**方法,我们可以得到与给定矩阵相同大小的乘法逆

语法: matrix.getI()

返回: 返回给定矩阵的乘法逆

例#1 : 在这个例子中我们可以看到,我们能够借助方法matrix.getI()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)

Output:

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

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)

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]]



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