data := [[-9.303180523, .990868595], [7.568413628, -12.60765810], [-4.07132128\
3, -3.860953215], [10.36587824, -16.60809013], [2.051147848, -8.629960379], [-\
2.361109378, -5.841839983], [-8.895667349, -.4735993600], [5.345368250, -10.48\
901698], [-.78443422e-1, -7.252242238], [-7.430934622, -1.842081957], [7.35108\
0479, -11.96551712], [-3.717876996, -1.356327180], [2.038267270, -9.246009773]
, [-2.107690035, -2.564513408], [-2.239567863, -5.743296530], [-.842720868, -3\
.647343072], [4.326597399, -11.06710836], [-7.742293951, .4426066273], [-.4484\
31553, -6.027556596], [-8.943463009, -.188004824], [9.234747935, -14.77218995]
, [8.483318226, -13.44015590], [5.815892018, -11.32339533], [-8.543084714, 1.3\
02802944], [10.22266129, -15.81280447]];