data := [[-.838426616, 9.439936216], [3.566674766, 12.14512723], [-5.315260187
, 3.311243759], [2.075371137, 11.95770214], [-.526879086, 9.299144142], [-3.78\
4829822, 4.110799056], [-2.656665094, 8.082384586], [6.554267907, 18.47814403]
, [-7.086545003, 1.505340957], [-9.406194899, .513025356], [-2.529182222, 8.33\
1797604], [8.203710301, 18.15556992], [2.942108284, 12.89068137], [1.787078967
, 10.79671669], [-7.049454382, 2.057823843], [8.024516843, 18.75281665], [4.50\
0939183, 13.74745583], [6.079543831, 16.24166987], [-1.150032540, 11.20476105]
, [-4.995645373, 5.583109642], [4.577581703, 15.21852704], [-8.230628250, -.\
65352351e-1], [10.76999569, 21.08282949], [5.848227544, 18.28792021], [4.95855\
6698, 14.76659988]];