Write a computer code to implement the composite trapezoidal rule quadrature th[f] = h 1 2 f(x0) + f(x1) + : : : + f(xn? ? 1) + 1 2 f(xn) ; (1) to approximate the denite integral i[f] = z b a f(x)dx; (2) using the equally spaced points x0 = a, x1 = x0 + h, x2 = x0 + 2h, . . , xn = b, where h = (b? ? a)=n. make sure that all your codes have a preamble which describes the purpose of the code, all the input variables, the expected output, your name, and the date of the last time you modied the code.