convert a 2D numpy array to a 2D numpy matrix
If you have a list of lists (as you mentioned), you need to convert it first to a numpy array; see how to convert 2d list to 2d numpy array?
A short example is given here:
import numpy as npa = [[ 0. +0.j, 1.j, 2. -2.j], [ 4. -4.j, 5. -5.j, 6. -1.j], [ 8. -8.j, 9. -9.j, 10.]]b = np.matrix(np.array(a))b_inv = np.linalg.inv(b)