自然数500以内常用派值 例如：一派3.14

自然数500以内常用派值 例如：一派3.14

这个你用excel电子表格可以自己做的呀。
在A1单元格输入
=row()*pi()
然后选中A1到A500,按ctrl-d,
就ok了。
还可以设置
(ctrl_1)单元格格式-数值-14位小数，
就可以有14位有效数字了。 设成其它位数也行。最多有15位有效数字，包括小数部分与整数部分。

1π = 3.14
2π = 6.28
3π = 9.42
4π = 12.56
5π = 15.7
6π = 18.84
7π = 21.98
8π = 25.12
9π = 28.26
10π = 31.4
11π = 34.54
12π = 37.68
13π = 40.82
14π = 43.96
15π = 47.1
16π = 50.24
17π = 53.38
18π = 56.52
19π = 59.66
20π = 62.8
21π = 65.94
22π = 69.08
23π = 72.22
24π = 75.36
25π = 78.5
26π = 81.64
27π = 84.78
28π = 87.92
29π = 91.06
30π = 94.2
31π = 97.34
32π = 100.48
33π = 103.62
34π = 106.76
35π = 109.9
36π = 113.04
37π = 116.18
38π = 119.32
39π = 122.46
40π = 125.6
41π = 128.74
42π = 131.88
43π = 135.02
44π = 138.16
45π = 141.3
46π = 144.44
47π = 147.58
48π = 150.72
49π = 153.86
50π = 157
51π = 160.14
52π = 163.28
53π = 166.42
54π = 169.56
55π = 172.7
56π = 175.84
57π = 178.98
58π = 182.12
59π = 185.26
60π = 188.4
61π = 191.54
62π = 194.68
63π = 197.82
这些有的都会用！！

3.14 6.28 9.42 12.56 15.7 18.84 21.98 25.12 28.26 31.4

34.54 37.68 40.82 43.96 47.1

50.24 53.38 56.52 59.66 62.8

65.94 69.08 72.22 75.36 78.5

81.64 84.78 87.92 91.06 94.2

97.34 100.48 103.62 106.76 109.9

113.04 116.18 119.32 122.46 125.6

128.74 131.88 135.02 138.16 141.3

144.44 147.58 150.72 153.86 157

160.14 163.28 166.42 169.56 172.7

175.84 178.98 182.12 185.26 188.4

191.54 194.68 197.82 200.96 204.1

207.24 210.38 213.52 216.66 219.8

222.94 226.08 229.22 232.36 235.5

238.64 241.78 244.92 248.06 251.2

254.34 257.48 260.62 263.76 266.9

270.04 273.18 276.32 279.46 282.6

285.74 288.88 292.02 295.16 298.3

301.44 304.58 307.72 310.86 314

参考资料：自己算

1π = 3.14
2π = 6.28
3π = 9.42
4π = 12.56
5π = 15.7
6π = 18.84
7π = 21.98
8π = 25.12
9π = 28.26
10π = 31.4
11π = 34.54
12π = 37.68
13π = 40.82
14π = 43.96
15π = 47.1
16π = 50.24
17π = 53.38
18π = 56.52
19π = 59.66
20π = 62.8
21π = 65.94
22π = 69.08
23π = 72.22
24π = 75.36
25π = 78.5
26π = 81.64
27π = 84.78
28π = 87.92
29π = 91.06
30π = 94.2
31π = 97.34
32π = 100.48
33π = 103.62
34π = 106.76
35π = 109.9
36π = 113.04
37π = 116.18
38π = 119.32
39π = 122.46
40π = 125.6
41π = 128.74
42π = 131.88
43π = 135.02
44π = 138.16
45π = 141.3
46π = 144.44
47π = 147.58
48π = 150.72
49π = 153.86
50π = 157
51π = 160.14
52π = 163.28
53π = 166.42
54π = 169.56
55π = 172.7
56π = 175.84
57π = 178.98
58π = 182.12
59π = 185.26
60π = 188.4
61π = 191.54
62π = 194.68
63π = 197.82
一一列出来很不容易的，求采纳啊！