Question: (b) Create a user function in VBA to approximate the second derivative, (dT/ dtz), using the following second-order finite (central) difference formula: d2f(xi) f(xi+1) -

(b) Create a user function in VBA to approximate the second derivative, (dT/ dtz), using the following second-order finite (central) difference formula: d2f(xi) f(xi+1) - 2f(xi) + f(xi-1) dx2 (4x)2 (b) Create a user function in VBA to approximate the second derivative, (dT/ dtz), using the following second-order finite (central) difference formula: d2f(xi) f(xi+1) - 2f(xi) + f(xi-1) dx2 (4x)2
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