初中数学用表资料.pdf

初中数学用表 2 目录 一、常数表. 3 二、平方表. 4 三、平方根表. 7 四、立方表 12 五、立方根表 34 六、阶乘数表 42 七、倒数表 43 八、正弦表 65 九、余弦表 68 十、正切表 71 （一）度与分 71 （二）度与秒 73 十一、对数表 76 十二、反对数表 79 十三、度、分、秒化弧度表 82 十四、弧度化度、分、秒表 83 十五、等分圆周表 84 3 一、常数表 π≈3.141 592 65 e≈2.718 281 83 2π≈6.283 185 31 2 e≈7.389 056 11 2 π ≈1.570 796 33 e≈1.648 721 27 3 π ≈1.047 197 55 1 e ≈0.367 879 44 4 3 π ≈4.188 790 20 lgMe=≈0.434 294 48 4 π ≈0.785 398 16 1 lne M =≈2.302 585 09 1 π ≈0.318 309 89 2≈1.414 213 56 1 2π ≈0.159 154 94 3≈1.732 050 81 2 π≈9.869 604 40 5≈2.236 067 98 2 1 π ≈0.101 321 18 12 22 =≈0.707 106 78 π≈1.772 453 85 13 33 =≈0.577 350 27 1π ππ =≈0.564 189 58 15 55 =≈0.447 213 60 3 π≈1.464 591 89 lnπ≈10144 729 89 32 3 1π ππ =≈0.685 784 06 lgπ≈0.497 149 87 1°≈0.017 453 293 弧度 1′≈0.000 290 888 弧度 1″≈0.000 004 848 弧度 1 弧度≈57°17′44.806″≈57.298 779 5° 1 密位＝0.06°＝3′36″ 1°≈16.6667 密位 4 二、平方表 百分位百分位（平方表） 千分位 千分位（平方表） 【10 -3】 N 0 1 2 3 4 5 6 7 8 9 123 4 5 6 7 8 90 1 2 3 4 5 6 7 8 9 123 4 5 6 7 8 9 1.0 1.0 1.000 1.020 1.040 1.0611.082 1.103 1.1241.1451.1661.188246 8 10 12 141618 1.1 1.1 1.210 1.232 1.254 1.2771.300 1.323 1.3461.3691.3921.416247 9 11 13 151820 1.2 1.2 1.440 1.464 1.488 1.5131.538 1.563 1.5881.6131.6381.664257 10 12 14 171922 1.3 1.3 1.690 1.716 1.742 1.7691.796 1.823 1.8501.8771.9041.932358 10 13 16 182123 1.4 1.4 1.960 1.988 2.016 2.0452.074 2.103 2.1322.1612.1902.220368 11 14 17 202225 1.5 1.5 2.250 2.280 2.310 2.3412.372 2.403 2.4342.4652.4962.528369 12 15 18 212427 1.6 1.6 2.560 2.592 2.624 2.6572.690 2.723 2.7562.7892.8222.8563610 13 16 19 222629 1.7 1.7 2.890 2.924 2.958 2.9933.028 3.063 3.0983.1333.1683.2043710 14 17 20 242731 1.8 1.8 3.240 3.276 3.312 3.3493.386 3.423 3.4603.4973.5343.5724711 14 18 22 252932 1.9 1.9 3.610 3.648 3.686 3.7253.764 3.803 3.8423.8813.9203.9604811 15 19 23 273034 2.0 2.0 4.000 4.040 4.080 4.1214.162 4.203 4.2444.2854.3264.3684812 16 20 24 283236 2.1 2.1 4.410 4.452 4.494 4.5374.580 4.623 4.6664.7094.7524.7964813 17 21 25 293438 2.2 2.2 4.840 4.884 4.928 4.9735.018 5.063 5.1085.1535.1985.2444913 18 22 26 313540 2.3 2.3 5.290 5.336 5.382 5.4295.476 5.523 5.5705.6175.6645.7125914 18 23 28 323741 2.4 2.4 5.760 5.808 5.856 5.9055.954 6.003 6.0526.1016.1506.20051014 19 24 29 343843 2.5 2.5 6.250 6.300 6.350 6.4016.452 6.503 6.5546.6056.6566.70851015 20 25 30 354045 2.6 2.6 6.760 6.812 6.864 6.9176.970 7.023 7.0767.1297.1827.23651016 21 26 31 364247 2.7 2.7 7.290 7.344 7.398 7.4537.508 7.563 7.6187.6737.7287.78451116 22 27 32 384349 2.8 2.8 7.840 7.896 7.952 8.0098.066 8.123 8.1808.2378.2948.35261117 22 28 34 394550 2.9 2.9 8.410 8.468 8.526 8.5858.644 8.703 8.7628.8218.8808.94061217 23 29 35 414652 3.0 3.0 9.000 9.060 9.120 9.1819.242 9.303 9.3649.4259.4869.54861218 24 30 36 424854 3.1 3.1 9.610 9.672 9.734 9.7979.860 9.923 9.98610.04910.11210.17661219 25 31 37 435056 3.2 3.2 10.240 10.304 10.368 10.43310.498 10.563 10.62810.69310.75810.82461319 26 32 38 455158 3.3 3.3 10.890 10.956 11.022 11.08911.156 11.223 11.29011.35711.42411.49271320 26 33 40 465359 3.4 3.4 11.560 11.628 11.696 11.76511.834 11.903 11.97212.04112.11012.18071420 27 34 41 485461 3.5 3.5 12.250 12.320 12.390 12.46112.532 12.603 12.67412.74512.81612.88871421 28 35 42 495663 3.6 3.6 12.960 13.032 13.104 13.17713.250 13.323 13.39613.46913.54213.61671422 29 36 43 505865 3.7 3.7 13.690 13.764 13.838 13.91313.988 14.063 14.13814.21314.28814.36471522 30 37 44 525967 3.8 3.8 14.440 14.516 14.592 14.66914.746 14.823 14.90014.97715.05415.13281523 30 38 46 536168 3.9 3.9 15.210 15.288 15.366 15.44515.524 15.603 15.68215.76115.84015.92081623 31 39 47 556270 4.0 4.0 16.000 16.080 16.160 16.24116.322 16.403 16.48416.56516.64616.72881624 32 40 48 566472 4.1 4.1 16.810 16.892 16.974 17.05717.140 17.223 17.30617.38917.47217.55681625 33 41 49 576674 4.2 4.2 17.640 17.724 17.808 17.89317.978 18.063 18.14818.23318.31818.40481725 34 42 50 596776 4.3 4.3 18.490 18.576 18.662 18.74918.836 18.923 19.01019.09719.18419.27291726 34 43 52 606977 4.4 4.4 19.360 19.448 19.536 19.62519.714 19.803 19.89219.98120.07020.16091826 35 44 53 627079 4.5 4.5 20.250 20.340 20.430 20.52120.612 20.703 20.79420.88520.97621.06891827 36 45 54 637281 4.6 4.6 21.160 21.252 21.344 21.43721.530 21.623 21.71621.80921.90221.99691828 37 46 55 647483 4.7 4.7 22.090 22.184 22.278 22.37322.468 22.563 22.65822.75322.84822.94491928 38 47 56 667585 4.8 4.8 23.040 23.136 23.232 23.32923.426 23.523 23.62023.71723.81423.912101929 38 48 58 677786 4.9 4.9 24.010 24.108 24.206 24.30524.404 24.503 24.60224.70124.80024.900102029 39 49 59 697888 5 百分位百分位（平方表） 千分位 千分位（平方表） 【10 -3】 N 0 1 2 3 4 5 6 7 8 9 123 4 5 6 7 8 90 1 2 3 4 5 6 7 8 9 123 4 5 6 7 8 9 5.0 5.0 25.000 25.100 25.200 25.30125.402 25.503 25.60425.70525.80625.908102030 40 50 60 708090 5.1 5.1 26.010 26.112 26.214 26.31726.420 26.523 26.62626.72926.83226.936102031 41 51 61 718292 5.2 5.2 27.040 27.144 27.248 27.35327.458 27.563 27.66827.77327.87827.984102131 42 52 62 738394 5.3 5.3 28.090 28.196 28.302 28.40928.516 28.623 28.73028.83728.94429.052112132 42 53 64 7485。