how to choose points That satisfy either one condition or another?

%step1 : Delete the values on the border tol=1e-2; A=[];

a=0.2; b=0.05;

    pause
    for i=1:length(NxB)       
        x=NxB(i);
        y=NyB(i);
          if  ((((x-0.165)+(y-0.165))^2)/(a^2))+((((x-0.165)+(y-0.165))^2))/(b^2) <=1-tol ||((((x-0.33)+(y-0.165))^2)/(a^2))+((((x-0.33)+(y-0.165))^2))/(b^2) <=1-tol
            A=[A i]
           end
    end

I have a list of point in the matrix NxB i want only the one inside my ellypses deleting the one on the border of them. I have 2 ellypses how do I do it?

thanks

[Jan]

What is the problem with the shown code?