Circle Point changing;

I have set of 10 point of coordinates of circle....(x1,y1),(x2,y2).....(x10,y10) i have a condition to satisfy using 3 coordinates of circle if that condition is not satisfied i have to use the other set of points (which can be any three) so i have keep this loop,till my condition is not satisfied. kindly help with how to apply loops on above prob;em

[Walter Roberson]

How does this differ from your "Points Elimination" question?