data := [[3.381870556, 16.81182249], [.31811573e-1, 15.00757675], [4.898671074
, 19.95878795], [-3.111531620, 11.94929830], [-7.854268286, 4.890194081], [-.8\
94944940, 12.55337541], [9.451780686, 26.02226115], [5.205488109, 22.89415811]
, [4.139740468, 21.41047956], [-1.940786736, 12.94025569], [5.559547050, 20.96\
790367], [4.825264726, 21.71747249], [-4.713660291, 12.56139584], [7.955252547
, 22.83455315], [-5.608114764, 9.355004987], [8.007563350, 25.38195434], [-6.3\
73943772, 10.86375242], [-8.979460595, 5.557154519], [-3.337309938, 12.7751534\
6], [-5.708516475, 7.950305246], [-.6757067327, 13.81622718], [3.174625236, 18\
.39798008], [5.027174079, 21.01121191], [2.244114332, 18.16140822], [4.3539475\
00, 21.14205896]];