python käänteismatriisi
# Python NumPy käänteismatriisi
# Python Inverse Matrix
# https://numpy.org/doc/stable/reference/generated/numpy.linalg.inv.html
import numpy as np
A = np.array([[5, -1, -3],
[2, -1, -1],
[-3, 1, 2]])
print(np.linalg.inv(A))
# Result:
# [[ 1. 1. 2.]
# [ 1. -1. 1.]
# [ 1. 2. 3.]]