differentiate f(x) in matlab

To differentiate a function f(x) in Matlab, you can use the diff() function. The diff() function computes the difference between adjacent elements in a matrix or vector. You can use this function with symbolic functions in Matlab to find the symbolic derivative of a function f(x).

Here is an example code snippet that shows how to differentiate a function f(x) in Matlab:

main.m
syms x;
f(x) = x^2 + 2*x + 1; % Define the function f(x) as a symbolic expression

diff(f(x)) % Compute the derivative of f(x)
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The output of this code will be:

main.m
ans =
 
2*x + 2
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This output shows that the derivative of f(x) is 2x + 2.