1、平方表 立方表 平方根 立方根12 = 1 13 = 1 1 = 1 1 = 122 = 4 23 = 8 2 = 1.414 2 = 1.26032 = 9 33 = 27 3 = 1.732 3 = 1.44242 = 16 43 = 64 4 = 2 4 = 1.58752 = 25 53 = 125 5 = 2.236 5 = 1.71062 = 36 63 = 216 6 = 2.449 6 = 1.81772 = 49 73 = 343 7 = 2.646 7 = 1.91382 = 64 83 = 512 8 = 2.828 8 = 292 = 81 93 = 729 9 = 3
2、 9 = 2.080102 = 100 103 = 1000 10 = 3.162 10 = 2.154112 = 121 113 = 1331 11 = 3.317 11 = 2.224122 = 144 123 = 1728 12 = 3.464 12 = 2.289132 = 169 133 = 2197 13 = 3.606 13 = 2.351142 = 196 143 = 2744 14 = 3.742 14 = 2.410152 = 225 153 = 3375 15 = 3.873 15 = 2.466162 = 256 163 = 4096 16 = 4 16 = 2.520172 = 289 173 = 4913 17 = 4.123 17 = 2.571182 = 324 183 = 5832 18 = 4.243 18 = 2.621192 = 361 193 = 6859 19 = 4.359 19 = 2.668202 = 400 203 = 8000 20 = 4.472 20 = 2.714
