clc; clear;

X=[1 1.5 1.75 2 2.5 3 4 5 10];
Y=[0.208 0.231 0.239 0.246 0.258 0.267 0.281 0.292 0.312];

A=lsquad(X,Y);
xmin=min(X);
xmax=max(X);
x_fit=linspace(xmin,xmax,1000);
y_fit=A(1)+A(2).*x_fit+A(3).*x_fit.^2;
plot(X,Y, 'rs', x_fit,y_fit,  'LineWidth',3);
grid on
fprintf('Uyumlanan 2. dereceden polinom: ');
fprintf('Y = %0.5f + %0.5f*X + %0.5f*X^2\n',A(1),A(2),A(3));