%Alexander Schmitt
%Andrej Hildebrand

function P3()
    x=[0.23 0.66 0.93 1.25 1.75 2.03 2.24 2.57 2.87 2.98]';
    y=[0.25 -0.27 -1.12 -0.45 0.28 0.13 -0.27 0.26 0.58 1.03]';
    b=y;
    A=[exp(x) log(x) sin(x) cos(x)];
    x_0 = [exp(x(1)) log(x(1)) sin(x(1)) cos(x(1))];
    
function y=f(A,x,b)
    y=norm(A'*x-b);
end

x = fmincon(@f,x_0,A'*A,A'*b)

end