x = [0,1,2,3,4,5,6,7,8]; y = [0,10,23,28,25,13,6,2,-5];

Spline interpolation, Use Matlab code Write your own spline method to estimate the value of the function on x [0,8],x = 0.1. For your 2 degrees of freedom, set the first and second derivatives at the left boundary to 0. Save your result, the interpolated y values.(do not use Matlab's built-in spline method