Question: Write a function Cubiclnterp2D. Determine i and j as in Linear Interp2D. Let cr(x) be the cubic interpolant of f at (Xi-I, v-). (Xi, v-). (XHI, v-). and (Xi+2, u-). r = j - l:j +2. Evaluate these four cubics at x. With the four values so obtained, construct another cubic interpolant d(y) which then can be evaluated at y.