第3个回答 2013-08-26
1, sqrt(2), sqrt(3), 2, sqrt(5), sqrt(6), sqrt(7), 2*sqrt(2), 3, sqrt(10), sqrt(11), 2*sqrt(3), sqrt(13), sqrt(14), sqrt(15), 4, sqrt(17), 3*sqrt(2), sqrt(19), 2*sqrt(5);
近似值分别为:
1.0, 1.414213562, 1.732050808, 2.000000000, 2.236067977, 2.449489743, 2.645751311, 2.828427125, 3.000000000, 3.162277660, 3.316624790, 3.464101615, 3.605551275, 3.741657387, 3.872983346, 4.000000000, 4.123105626, 4.242640687, 4.358898944, 4.472135955