[질문] 정적분계산법좀

integral(a to b)f(x)dx = integral(x_0 to x_2)f(x)dx + integral(x_2 to x_4)f(x)dx +...+ integral(x_(n-2) to x_n)f(x)dx≒ (b-a)/(3n)*{f(x_0)+4f(