To sum functions which have two unknowns and finding the min values of these unknowns

What I am trying to do is to insert these equations into summation and to find the x and y values that minimize the function:

I know BS and r matrices. x and y are unknown.

I have this error message in Matlab. How can I fix it?

Answer 1

[George Papazafeiropoulos]

See if this works:

F=zeros(200,1);

xy=zeros(200,2);

BS=rand(4,2);

r=rand(200);

for ti=1:200

    for m=1:4

        F=@(xy) 2*r(ti,m)+hypot(xy(1)-BS(m,1), xy(2)-BS(m,2));

    end

    [xyout,fval]=fminsearch(F,[1 1]);

    xy(ti,:)=xyout;

end

Hope this helps!

Answer 2

[Romain]

I propose :

Create a function:

function F = myFunc(xy,t, BS, r)

F = 0;
for m=1:4
    F = 2*r(ti,m)+hypot(xy(1)-BS(m,1), xy(2)-BS(m,2)) + F;
end

And then call :

for t = 1:200
    [xy(t,:),fval] = fminsearch(@(xy) test(xy,t,BS,r),[1,1]);
end

Hope this helps !