2.数学常数

2.数学常数(一)

常数nlgn常数nlgnπ3.1415930.49715π/60.5235991.719002π6.2831850.73818π/180(=1°)0.0174532.241883π9.4247780.97427π/10800(=1′)0.0002914.463734π12.5663711.09921π/648000(=1″)0.0000056.68557π/21.5707960.19612π29.8696040.99430π/21.0471980.020032π219.7392081.295174π/34.1887910.62185　1.7724540.24857π/40.7853981.89509　2.5066280.39909

数学常数(二)

常 数nlgn常 数nlgn

e e2

eπ/2

eπ

e2π

C※

M=lge g

g2

1/π

1/2π

1/3π

1/4π

2/π1.253314

1.464592

1.611992

2.718282

7.389056

1.648721

1.395612

4.810477

23.140693

535.491656

0.577216

0.434294

9.81

96.2361

3.132091

4.429450

0.318310

0.159155

0.106103

0.079577

0.6366200.09806

0.16572

0.20736

0.43429

0.86859

0.21715

0.14476

0.68219

1.36438

2.72875

1.76134

1.63778

0.99167

1.98334

0.49583

0.64635

1.50285

1.20182

1.02573

2.90079

1.803883/π

4/π

6/π

180°/π

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