matlab2

function wynik = minY(x)
%UNTITLED3 Summary of this function goes here
%   Detailed explanation goes here
stala = x;
f=@(y) 2.*stala.^2+y.^2+stala.*y-6.*stala-5.*y+8;

a = -5;
b = 5;
e = 0.000001;
x1=a+0.382*(b-a);
x2=a+0.618*(b-a);
while (b-a)>e
if (f(x1)<f(x2))
    b=x2;
else
    a=x1;
end
x1=a+0.382*(b-a);
x2=a+0.618*(b-a);
end
wynik=(a+b)/2;
end