Question: Use the second order accurate second derivative central difference formula f ( 2) ~ f ( It h) - 2f(I) + f (x -h) h2

Use the second order accurate second derivative central difference formula f" ( 2) ~ f ( It h) - 2f(I) + f (x -h) h2 along with Richardson extrapolation to obtain a fourth and then sixth order accurate second derivative finite difference formula with leading order error. How does this result compare to the results from question ??(a)i

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