Hello,

I would like to operate in an easy and efficient way (without python loop) with arrays of matrices.

Suppose a and b are some arrays of N1*N2 matrices of size 3*3, I would like to calculate inv_a and dot_ab, which would be arrays of N1*N2 (3*3)-matrices, such as :

inv_a[i, j] = np.linalg.inv(a[i, j])

dot_ab[i, j] = np.dot(a[i, j], b[i, j])

(where a and b could be :

N1 = 5

N2 = 6

a = np.random((N1, N2, 3, 3)

b = np.random((N1, N2, 3, 3)

Thank you,

(Sorry to ask the list : I think it is quite a basic stuff, but searching for "array of matrices" on google didn't help me so much.)

Jean-Baptiste Rudant