2. 常用数表

(1)常用数学常数表见表1-30。表1-30常用数学常数表常数数值π2π3π4ππ/2π/3π/4π/6π/180(=1°)π2e3.1415936.2831859.42477812.5663711.5707961.0471980.7853980.5235990.0174539.8696041.7724542.5066281.2533141.4645922.718282常数数值e21/π1/2π1/3π1/4π2/π3/π4/π6/π1/π27.3890 ......（本文共 43046 字 ）     [阅读本文]>>