Question: Given data for f at equally spaced grid points i - 1 , i , i + 1 , i + 2 , i +

"Given data for f at equally spaced grid points i-1, i, i+1, i+2, i+3, derive the biased fourth order finite difference approximation to a first derivative at grid point i. You can use software to solve the 3x3 linear system that should arise"

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