clc;
clear all;
 
% Define the fixed-point function
g = @(x) exp(-x);
 
% Initial guess
a = 0;
 
% Fixed-Point Iteration
for i = 1:10
    r(i) = g(a);  % Compute next approximation
    err(i) = abs((a - r(i)) / r(i)) * 100;  % Relative error (%)
    a = r(i);  % Update guess
 
    % Display results
    fprintf('Iter: %i  APP_root: %.6f  Error: %.5f%%\n', i, r(i), err(i));
 
    % Stop if error is less than 0.01%
    if err(i) < 0.01
        break;
    end
end
 

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