need help on both of these python questions

1) 2)

Having a hard time trying to do these and understanding it.

Define a function matrix-pow(M, e) which takes as input a square matrix M and a natural number e . The output should be the result of matrix multiplication, with M multiplied by itself e times. When e is zero, the function should output the identity matrix np.eye(s) where s is the number of rows (or columns) of M