>>> import numpy as np >>> A = np.array(([1,3,3],[1,4,3],[1,3,4])) >>> A array([[1, 3, 3], [1, 4, 3], [1, 3, 4]]) >>> A_inv = np.linalg.inv(A) >>> A_inv array([[ 7., -3., -3.], [-1., 1., 0.], [-1., 0., 1.]])