Consider the function f(x) = 30/1+3x2, defined over the interval [-3, +3]. Using the 7 data points
(-3, f(-3)), (23, f(-2)), (-1, f(-1)), (0, f(0)), (1, f(1)), (2, f(2)), (3, f(3)),

compute the corresponding interpolation polynomial of degree 6, using Vandermonde- based collocation