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/21.0471980.020032π219.7392081.2 (共 1188 字) [阅读本文] >>


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