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.
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Jim Riggs
2020-5-10
编辑:Jim Riggs
2020-5-10
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"
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/291933/image.jpeg)
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Muhammad Hammad Malik
2021-2-14
编辑:Muhammad Hammad Malik
2021-2-14
@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![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/519297/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/519297/image.jpeg)
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