“…Then, we define the 2M operational matric of integrations P n and its element order n, index i is computed using the relation P n (i, l) = p i,n (x l ), where x l is defined in (17) For example, if J = 1 ⇒ 2M = 4, and n = 1, then from ( 22) the Haar integral matrix of first order and when n = 2, the Haar wavelet integral matrix of second order is computed by using (23) as…”