how to store all your values from a loop into a vector

I am trying to store all the values of P i get from this loop, but it only returns the last value.

%    h            k        radius
A=[-7.3763     7.6512     7.8
    3.5199     1.0563     5.6
    5.2646     -4.8721     10.0
    2.1783     -0.5596     4.9
    -5.4952     2.1826     3.5];

[n,m]=size(A);

a=1;
while a<n
for s=(a+1):n
    fun=@(x) [(x(1).^2)+(x(2).^2)-2*(x(1)*A(s,1)+x(2)* A(s,2))+(A(s,1)^2)+(A(s,2)^2)-(A(s,3)^2)...
        (x(1).^2)+(x(2).^2)-2*(x(1)*A(a,1)+x(2)* A(a,2))+(A(a,1)^2)+(A(a,2)^2)-(A(a,3)^2)];
 % equation of a circle ((x-h)^2)+((y-k)^2)-r^2=0, (expanded out)
    B=[A(a,1),A(a,2)-A(a,3)];%guess
    P=fsolve(fun,B)
end
a=a+1;
end

Answer 1

[KSSV]

%    h            k        radius
A=[-7.3763     7.6512     7.8
    3.5199     1.0563     5.6
    5.2646     -4.8721     10.0
    2.1783     -0.5596     4.9
    -5.4952     2.1826     3.5];
[n,m]=size(A);
a=1;
count = 0 ; 
P = zeros([],2) ; 
while a<n
    for s=(a+1):n
        fun=@(x) [(x(1).^2)+(x(2).^2)-2*(x(1)*A(s,1)+x(2)* A(s,2))+(A(s,1)^2)+(A(s,2)^2)-(A(s,3)^2)...
            (x(1).^2)+(x(2).^2)-2*(x(1)*A(a,1)+x(2)* A(a,2))+(A(a,1)^2)+(A(a,2)^2)-(A(a,3)^2)];
        % equation of a circle ((x-h)^2)+((y-k)^2)-r^2=0, (expanded out)
        B=[A(a,1),A(a,2)-A(a,3)];%guess
        count = count+1 ; 
        P(count,:)=fsolve(fun,B)
    end
    a=a+1;
end

[Ash]

Thanks! worked out great