numerical derivate and central difference

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can anyone help me with this function, please?
find numerical derivative of f(x) = tan−1(?) at x = 2 using central difference scheme where is x is in radians. Use different values of step size h in central difference scheme and compare with true value of the derivative by plotting error for the different h. f(x) means function of x.
  2 Comments
Ameer Hamza
Ameer Hamza on 10 May 2020
This seems like a homework question. What have you already tried?
payam abubakr
payam abubakr on 10 May 2020
i have tried nothing because i don't knoe how to start.
appreciate your help

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Answers (1)

Jim Riggs
Jim Riggs on 10 May 2020
Edited: Jim Riggs on 10 May 2020
Here are some Numerical difference formulas using the central difference method (substitute dt = h).
You can find more formulas with even higher accuracy on wikipedia. (see "numerical differentiation" and also "finite difference coefficient"
  4 Comments
Muhammad Hammad Malik
Muhammad Hammad Malik on 14 Feb 2021
Edited: Muhammad Hammad Malik on 14 Feb 2021
@Jim Riggs @payam abubakri also want to calculate gradient(central difference) with window size=10smples with 50% overlap to previous window using attached equation.could you pls help. Thanks

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