1乘3.14等于3.14
2乘以3.14等于6.28
解：
借助EXCEL很容易得到bai结果，下面是保留12位小数du的结果：
1×πzhi＝3.141592653590
2×π＝6.283185307180
3×π＝9.424777960769
4×π＝12.566370614359
5×π＝15.707963267949
6×π＝18.849555921539
7×π＝21.991148575129
8×π＝25.132741228718
9×π＝28.274333882308
10×π＝31.415926535898
11×π＝34.557519189488
12×π＝37.699111843078
13×π＝40.840704496667
14×π＝43.982297150257
15×π＝47.123889803847
16×π＝50.265482457437
17×π＝53.407075111027
18×π＝56.548667764616
19×π＝59.690260418206
20×π＝62.831853071796
21×π＝65.973445725386
22×π＝69.115038378975
23×π＝72.256631032565
24×π＝75.398223686155
25×π＝78.539816339745
26×π＝81.681408993335
27×π＝84.823001646924
28×π＝87.964594300514
29×π＝91.106186954104
30×π＝94.247779607694
31×π＝97.389372261284
32×π＝100.530964914873
33×π＝103.672557568463
34×π＝106.814150222053
35×π＝109.955742875643
36×π＝113.097335529233
37×π＝116.238928182822
38×π＝119.380520836412
39×π＝122.52dao490002
40×π＝125.663706143592
41×π＝128.805298797182
42×π＝131.946891450771
43×π＝135.088484104361
44×π＝138.230076757951
45×π＝141.371669411541
46×π＝144.513262065130
47×π＝147.654854718720
48×π＝150.796447372310
49×π＝153.938040025900
50×π＝157.079632679490
51×π＝160.221225333079
52×π＝163.362817986669
53×π＝166.504410640259
54×π＝169.646003293849
55×π＝172.787595947439
56×π＝175.929188601028
57×π＝179.070781254618
58×π＝182.212373908208
59×π＝185.353966561798
60×π＝188.495559215388
61×π＝191.637151868977
62×π＝194.778744522567
63×π＝197.920337176157
64×π＝201.061929829747
65×π＝204.203522483337
66×π＝207.345115136926
67×π＝210.486707790516
68×π＝213.628300444106
69×π＝216.769893097696
70×π＝219.911485751286
71×π＝223.053078404875
72×π＝226.194671058465
73×π＝229.336263712055
74×π＝232.477856365645
75×π＝235.619449019234
76×π＝238.761041672824
77×π＝241.902634326414
78×π＝245.044226980004
79×π＝248.185819633594
80×π＝251.327412287183
81×π＝254.469004940773
82×π＝257.610597594363
83×π＝260.752190247953
84×π＝263.893782901543
85×π＝267.035375555132
86×π＝270.176968208722
87×π＝273.318560862312
88×π＝276.460153515902
89×π＝279.601746169492
90×π＝282.743338823081
91×π＝285.884931476671
92×π＝289.026524130261
93×π＝292.168116783851
94×π＝295.309709437441
95×π＝298.451302091030
96×π＝301.592894744620
97×π＝304.734487398210
98×π＝307.876080051800
99×π＝311.017672705390
100×π＝314.159265358979
扩展资料：
把圆周率的数值算得这么精确，实际意义并不大。现代科技领域使用的圆周率值，有十几位已经足够了。如果以39位精度的圆周率值，来计算可观测宇宙（observable universe）的大小，误差还不到一个原子的体积。以前的人计算圆周率，是要探究圆周率是否循环小数。自从1761年兰伯特证明了圆周率是无理数，1882年林德曼证明了圆周率是超越数后，圆周率的神秘面纱就被揭开了。
参考资料来源：百度百科-圆周率
2乘以3.14等于6.28。