Write a function that evaluates the derivative of a function in a given point using the well-know formula of the difference quotient:

f'(x)=(f(x+h)- f(x -h))/(2*h)

Example:

input: @sin,pi/4,1e-4
output: 0.7071
Solve

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Last Solution submitted on Feb 10, 2026

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Boldizsar Mehdi Dehghan Hanna Johan

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