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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