@ -160,7 +160,7 @@ class layer:
def compute_VN_entropy_approx(self, poly):
p = poly.degree
h = - poly[p] * self.N
M = csr_matrix(np.eye(self.N))
M = csr_matrix(eye(self.N))
for i in range(p-1, -1, -1):
M = M * self.resc_laplacian
h += - poly[i] * sum(M.diagonal())