# Answer to Question #2339 in MatLAB | Mathematica | MathCAD | Maple for Allyssa Pellegrin

Question #2339

Find a more accurate formula for f '(t) using method of undetermined coefficient. Let's say

formula is of the form

f0(t) = A*f(t + 2h) + B*f(t + h) - B*f(t - h) - A*f(t - 2h)

Find the values of A and B such that error is minimized. What power of h is the error proportional

to? Use this formula to d/dx sin(x) at x = pi=3. Tabulate errors for different values of h.

formula is of the form

f0(t) = A*f(t + 2h) + B*f(t + h) - B*f(t - h) - A*f(t - 2h)

Find the values of A and B such that error is minimized. What power of h is the error proportional

to? Use this formula to d/dx sin(x) at x = pi=3. Tabulate errors for different values of h.

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