* This is a simple classification problem with two classes.  One set of
* points (class 2) is the set of points within 1 unit of the point
* (0,0).  Second there is a square outside this area with a length of
* about 2.5 and again centered at (0,0) (class 1).
m 2 4 2
s7
ci
a dd uq
f ir pc
qp e 0.02 s+
rt circle.tra
tf circle.tes