' Mid-rectandles method ' for function f(x)= y(x) = x^6 Dim f(999) s = 16108089 T = s Mod 100 a = 0 b = 1 n = 88 n = 2 * T h = (b - a) / n ' For k = 1 To n x = a + k * h - h / 2 f(k) = x ^ 6 Next k ' i = 0 For k = 1 To n i = i + h * f(k) Next k MsgBox i d1 = Abs(i - 1 / 7) 'MsgBox d1 d2 = Abs(30 / (24 * n ^ 2)) MsgBox d2 dd = Abs(d1 - d2) 'MsgBox dd