Reduce reduce the number of for loops?

Question

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I have function.

function G=J(Fleft,Fright,Data)
cxleft=size(Fleft,2);
cxright=size(Fright,2);
cd=size(Data,2);
k=1;
Tmp=zeros(3,cxright*cxleft*cd);
for i=1:cxleft
    for j=1:cxright
        for t=1:cd
            Tmp(1,k)=Fleft(1,i)+Fright(1,j)+Data(1,t);
            Tmp(2,k)=(Data(1,t)*Data(2,t)+Fleft(1,i)*Fleft(2,i)+Fright(1,j)*Fright(2,j))/Tmp(1,k);
            Tmp(3,k)=((Fleft(1,i)*Fright(1,j)*(Fleft(2,i)-Fright(2,j))^2+Fleft(1,i)*Data(1,t)*(Fleft(2,i)-Data(2,t))^2+Fright(1,j)*Data(1,t)*(Fright(2,j)-Data(2,t))^2)/Tmp(1,k))+Fleft(3,i)+Fright(3,j)+Data(3,t);
            k=k+1;
        end
    end
end
G=Tmp;