Why is my code not working?

f= @(x) average_f(x);
final = 70; % Intiall estimate

final = fsolve(f,final)
final >= 0;

function average = average_f(final)
scores= [55, 76, 85, 50];
average= (scores + final)/5;
end
if average == 65
end

Answer 1

[Hassaan]

f = @(final) average_f(final) - 65;  % Define a function that should be zero
initial_estimate = 70;  % Initial estimate for fsolve
final = fsolve(f, initial_estimate);  % Find final that makes f zero

Equation solved.

fsolve completed because the vector of function values is near zero
as measured by the value of the function tolerance, and
the problem appears regular as measured by the gradient.

disp(final);  % Display the final result

   59.0000

function average = average_f(final)
    scores = [55, 76, 85, 50];
    average = (sum(scores) + final) / (length(scores) + 1);  % Correct average calculation
end

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