MATLAB Script:
close all
clear
clc
syms x
f = x^3 - 3*x^2 + 3*x - 1;
x0 = 0; tol = 1e-9;
newton_raphson(f, x0, tol);
function x = newton_raphson(f, x0, tol)
x = x0; xold = x0; num_iter = 0;
df = diff(f);
while true
num_iter = num_iter + 1;
x = x - subs(f,x)/subs(df,x); % Newton Update Rule
if abs(x - xold) < tol % Termination condition
break
end
xold = x;
end
fprintf('Solution: %.6f, Number of Iterations: %d, Tolerance:
%e\n', x, num_iter, tol)
end
Output:
Solution: 1.000000, Number of Iterations: 50, Tolerance:
1.000000e-09
MATLAB Newtons Method. Use initial guess of xo. Use Matlab. x2-3x2+ 3x - 1 = 0
Use Newtons method to find a solution accurate to within 10-2 for ex-3x2=0, 0≤ x≤ 1 (Numerical Methods/Analysis)
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