\(\sqrt{n} \)的值

\(\sqrt{1} \approx 1.00\)\(\sqrt{2} \approx 1.41\)\(\sqrt{3} \approx 1.73\)\(\sqrt{4} \approx 2.00\)\(\sqrt{5} \approx 2.24\)\(\sqrt{6} \approx 2.45\)\(\sqrt{7} \approx 2.65\)\(\sqrt{8} \approx 2.83\)\(\sqrt{9} \approx 3.00\)\(\sqrt{10} \approx 3.16\)
\(\sqrt{11} \approx 3.32\)\(\sqrt{12} \approx 3.46\)\(\sqrt{13} \approx 3.61\)\(\sqrt{14} \approx 3.74\)\(\sqrt{15} \approx 3.87\)\(\sqrt{16} \approx 4.00\)\(\sqrt{17} \approx 4.12\)\(\sqrt{18} \approx 4.24\)\(\sqrt{19} \approx 4.36\)\(\sqrt{20} \approx 4.47\)
\(\sqrt{21} \approx 4.58\)\(\sqrt{22} \approx 4.69\)\(\sqrt{23} \approx 4.80\)\(\sqrt{24} \approx 4.90\)\(\sqrt{25} \approx 5.00\)\(\sqrt{26} \approx 5.10\)\(\sqrt{27} \approx 5.20\)\(\sqrt{28} \approx 5.29\)\(\sqrt{29} \approx 5.39\)\(\sqrt{30} \approx 5.48\)
\(\sqrt{31} \approx 5.57\)\(\sqrt{32} \approx 5.66\)\(\sqrt{33} \approx 5.74\)\(\sqrt{34} \approx 5.83\)\(\sqrt{35} \approx 5.92\)\(\sqrt{36} \approx 6.00\)\(\sqrt{37} \approx 6.08\)\(\sqrt{38} \approx 6.16\)\(\sqrt{39} \approx 6.24\)\(\sqrt{40} \approx 6.32\)
\(\sqrt{41} \approx 6.40\)\(\sqrt{42} \approx 6.48\)\(\sqrt{43} \approx 6.56\)\(\sqrt{44} \approx 6.63\)\(\sqrt{45} \approx 6.71\)\(\sqrt{46} \approx 6.78\)\(\sqrt{47} \approx 6.86\)\(\sqrt{48} \approx 6.93\)\(\sqrt{49} \approx 7.00\)\(\sqrt{50} \approx 7.07\)

\(n^2\)的值

\(11^2=121\)\(12^2=144\)\(13^2=169\)\(14^2=196\)\(15^2=225\)\(16^2=256\)\(17^2=289\)\(18^2=324\)\(19^2=361\)\(20^2=400\)
\(21^2=441\)\(22^2=484\)\(23^2=529\)\(24^2=576\)\(25^2=625\)\(26^2=676\)\(27^2=729\)\(28^2=784\)\(29^2=841\)\(30^2=900\)
\(31^2=961\)\(32^2=1024\)\(33^2=1089\)\(34^2=1156\)\(35^2=1225\)\(36^2=1296\)\(37^2=1369\)\(38^2=1444\)\(39^2=1521\)\(40^2=1600\)
\(41^2=1681\)\(42^2=1764\)\(43^2=1849\)\(44^2=1936\)\(45^2=2025\)\(46^2=2116\)\(47^2=2209\)\(48^2=2304\)\(49^2=2401\)\(50^2=2500\)

\(2^n\)的值

\(2^{1}=2\)\(2^{2}=4\)\(2^{3}=8\)\(2^{4}=16\)\(2^{5}=32\)\(2^{6}=64\)\(2^{7}=128\)\(2^{8}=256\)\(2^{9}=512\)\(2^{10}=1024\)
\(2^{11}=2048\)\(2^{12}=4096\)\(2^{13}=8192\)\(2^{14}=16384\)\(2^{15}=32768\)\(2^{16}=65536\)\(2^{17}=131072\)\(2^{18}=262144\)\(2^{19}=524288\)\(2^{20}=1048576\)
\(2^{21}=2097152\)\(2^{22}=4194304\)\(2^{23}=8388608\)\(2^{24}=16777216\)\(2^{25}=33554432\)\(2^{26}=67108864\)\(2^{27}=134217728\)\(2^{28}=268435456\)\(2^{29}=536870912\)\(2^{30}=1073741824\)

\(n\pi\)的值(\(\pi=3.14\))

\(1\pi=3.14\)\(2\pi=6.28\)\(3\pi=9.42\)\(4\pi=12.56\)\(5\pi=15.7\)\(6\pi=18.84\)\(7\pi=21.98\)\(8\pi=25.12\)\(9\pi=28.26\)\(10\pi=31.4\)
\(11\pi=34.54\)\(12\pi=37.68\)\(13\pi=40.82\)\(14\pi=43.96\)\(15\pi=47.1\)\(16\pi=50.24\)\(17\pi=53.38\)\(18\pi=56.52\)\(19\pi=59.66\)\(20\pi=62.8\)
\(21\pi=65.94\)\(22\pi=69.08\)\(23\pi=72.22\)\(24\pi=75.36\)\(25\pi=78.5\)\(26\pi=81.64\)\(27\pi=84.78\)\(28\pi=87.92\)\(29\pi=91.06\)\(30\pi=94.2\)
\(31\pi=97.34\)\(32\pi=100.48\)\(33\pi=103.62\)\(34\pi=106.76\)\(35\pi=109.9\)\(36\pi=113.04\)\(37\pi=116.18\)\(38\pi=119.32\)\(39\pi=122.46\)\(40\pi=125.6\)
\(41\pi=128.74\)\(42\pi=131.88\)\(43\pi=135.02\)\(44\pi=138.16\)\(45\pi=141.3\)\(46\pi=144.44\)\(47\pi=147.58\)\(48\pi=150.72\)\(49\pi=153.86\)\(50\pi=157\)
\(51\pi=160.14\)\(52\pi=163.28\)\(53\pi=166.42\)\(54\pi=169.56\)\(55\pi=172.7\)\(56\pi=175.84\)\(57\pi=178.98\)\(58\pi=182.12\)\(59\pi=185.26\)\(60\pi=188.4\)
\(61\pi=191.54\)\(62\pi=194.68\)\(63\pi=197.82\)\(64\pi=200.96\)\(65\pi=204.1\)\(66\pi=207.24\)\(67\pi=210.38\)\(68\pi=213.52\)\(69\pi=216.66\)\(70\pi=219.8\)
\(71\pi=222.94\)\(72\pi=226.08\)\(73\pi=229.22\)\(74\pi=232.36\)\(75\pi=235.5\)\(76\pi=238.64\)\(77\pi=241.78\)\(78\pi=244.92\)\(79\pi=248.06\)\(80\pi=251.2\)
\(81\pi=254.34\)\(82\pi=257.48\)\(83\pi=260.62\)\(84\pi=263.76\)\(85\pi=266.9\)\(86\pi=270.04\)\(87\pi=273.18\)\(88\pi=276.32\)\(89\pi=279.46\)\(90\pi=282.6\)
\(91\pi=285.74\)\(92\pi=288.88\)\(93\pi=292.02\)\(94\pi=295.16\)\(95\pi=298.3\)\(96\pi=301.44\)\(97\pi=304.58\)\(98\pi=307.72\)\(99\pi=310.86\)\(100\pi=314\)

\(\pi\)前100位及助记口诀

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679

前30位:
山巅一寺一壶酒(3.14159),尔乐苦煞吾(26535),把酒吃(897),酒杀尔(932),杀不死(384),遛尔遛死(6264),扇扇刮(338),扇耳吃酒(3279)。

31-60位:
吾领儿爬(502),扒撕肘腰(8841),酒气绕山(9716),久久散无(9399),灵气时来(3751),领吾爬山(0582)。

61-100位:
零九思思(09749),试把酒吃(44592),三令七药(30781),令六丝柳(640628),柳儿拔丝(620899),拔不散留(862803),试把尔扇(482534),扇二姨(2117),令六舅走(0679)。