I want to extract the coefficients of a polynomial matrix P(x) with sym x, which can be decomposed into P0 + P1x + P2x^2 ....
A example can be sym x
P = [1 + x x^2; x^3 x^4];
I understand that one might apply the function coeffi to each entry of P(x) to handle this problem. However, I wonder if there are more efficient ways to achieve this task.