Question: Compare analytical, forward difference, backward difference, and central difference derivatives off with respect to x1 and x2, using Program GRADIENT for the function 4x2-xx

Compare analytical, forward difference, backward difference, and central difference derivatives off with

Compare analytical, forward difference, backward difference, and central difference derivatives off with respect to x1 and x2, using Program GRADIENT for the function 4x2-xx f = 2 1 2 at the point x0 = (0.5, 1.5)T. Note: provide the function in 10000(x x3 -x4) 211 Subroutine Getfun and the analytical gradient in Subroutine Gradient.

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