suppose f(x) = exp(x), what is the true value of f’(x) at xi =1? in matlab

To calculate the derivative of the function f(x) = exp(x) at x = 1 in MATLAB, you can use the symbolic math toolbox. Here is the code to find the true value of f'(x) at x = 1:

main.m
syms x
f = exp(x); % function f(x) = exp(x)
df = diff(f, x); % calculatet the derivative of f(x)
df_value = subs(df, x, 1); % substitute x = 1 in the derivative
df_value
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The output will give you the true value of f'(x) at x = 1.