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常 数
真 数
对 数
e=2.71828183
0.43429448
log10e=M
M=0.43429448
9.63778431-10
log10N=M×lnN
1/M=2.30258209
0.36221569
log102=0.30103000
π=3.14159265
0.49714987
√2=1.41421356
1/π=0.31830989
9.50285013-10
√3=1.73205081
sin1″=0.4848×10-5
4.68557487-10
√π=1.77245385
sin1º=0.017452406
8.24185532-10
π2=9.86960440
γ(欧拉常数)=0.57721566
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