symbolnamesvalueidentitiesmnemonic eEuler's constant2.718281828459045...[[!teximg code="e^i\pi + 1 = 0"]] π3.1415926[[!teximg code="e^{i\pi} + 1 = 0"]]山巔一寺一壺酒(3.14159), 爾樂苦煞吾(26535)。把酒吃(897),酒殺爾(932),殺不死(384),樂爾樂(626)。| 要是要我酒(14159),爾樂舞扇舞(26535)。把酒吃酒散(89793),爾散把四柳(23846)。二柳似三杉(26433),拔杉爾吃酒(83279)。勿憐爾拔吧(50288),死一救其一(41971)。... τ6.2831853071795864769252...[[!teximg code="e^{i\tau} = 1"]]