data := [[-.1331326810, 8.426335022], [2.147657418, 7.058659471], [-.895811946
, 5.906414593], [3.017906316, 7.557177228], [-1.491920920, 6.797982504], [4.10\
7539039, 11.09653516], [-5.228183439, .3101017287], [-3.854457530, 4.085396108
], [2.035029978, 11.07003104], [-5.991246658, 1.733455115], [-5.621334507, 2.0\
15162672], [7.566445170, 16.07893351], [6.807088524, 11.70278054], [-9.0971413\
99, -3.381225693], [.347131373, 5.479405325], [2.498865097, 9.326030307], [.\
48790175e-1, 4.920911900], [-1.240154941, 5.020335876], [-7.221270230, -1.2482\
57761], [6.939485704, 14.69371483], [2.684898732, 11.82896282], [1.982481094,
10.36587295], [-6.919571100, 1.464293370], [9.814473699, 16.35102406], [-7.735\
877466, -2.441353056]];