ex2 lab2

function xc=secanta(f,x0,x1,k)
x(1)=x0;
x(2)=x1;
for i=2:k
    x(i+1)=x(i)-(f(x(i))*(x(i)-x(i-1)))/f(x(i))-f(x(i-1))
end
xc=x(k+1);


%in matlab incepi de la 1 cu indexarea
%x(i) e practic vectorul *x