data := [[2.765408818, -1.077049379], [-4.619045180, 8.387188104], [-2.6460510\
86, 6.655705150], [7.812963436, -5.220040482], [9.448850291, -5.652910601], [6\
.955889655, -4.413102321], [-1.408946316, 2.929177736], [.443138373, 3.0713827\
72], [4.429045380, -.154006420], [-6.761122029, 7.868115415], [6.921762979, -4\
.433738624], [.319680901, 2.433945621], [-1.298198000, 2.852967709], [8.945844\
334, -6.241921858], [-.986006546, 5.571404894], [.146513299, 4.692723645], [-1\
.181121935, 4.231639919], [-8.325677164, 10.68891332], [-1.508626380, 3.804627\
535], [-7.507319876, 10.68452354], [-7.652303022, 13.88264490], [3.241571426,
.3494667573], [1.784814821, .411793544e-1], [-4.508773359, 8.008814586], [1.74\
0122892, 1.811271684]];