To study the accuracy of cubic spline interpolation, use a package program to construct interpolating splines to y=e^x on 0 ≤x ≤1. Use evenly spaced nodes on [0,1] to generate the data, say, with 10,20 , and 40 subdivisions. Then check the accuracy of the spline function at four times that many points. Do this for (a) the cubic natural interpolating spline function, and (b) the spline satisfying (4.71) or (4.72). Discuss your results. How does the error behave as the number of subdivisions is do

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