data := [[10.98001550, -18.20676596], [-4.298322600, 9.346299361], [-.84562979\
3, 2.421722791], [5.162977725, -10.69186026], [-7.899859496, 12.43407702], [.6\
68215090, .5906193868], [1.939514520, -4.419057420], [-9.007574480, 14.7460531\
2], [-9.296513032, 16.43205679], [-2.251621275, 5.378375302], [-.833855180, -1\
.288133906], [-8.390980402, 14.99380140], [10.12396068, -17.94022527], [1.2499\
99592, -5.176658742], [.509448634, -1.628689572], [-10.45142627, 17.76578508],
[-9.434006552, 15.11984179], [-.6565856350, .562413477e-1], [-2.613348525, 2.9\
87839362], [-2.500438526, 4.444903400], [3.569106261, -4.158057163], [-3.04681\
9028, 3.240480888], [-8.001366837, 14.40536413], [-1.385897785, .639338474], [
10.07949816, -16.71324655]];