noun
数据来源:WordNet
Leonhard Euler is a famous Swiss mathematician .
欧勒是著名的瑞士数学家。
This value is the unique real number , named after Leonhard Euler .
该值是惟一的实数,以LeonhardEuler命名。
The symbol was first used in mathematical calculations in 1737 by the Swiss mathematician Leonhard Euler .
1737年,瑞士数学家莱昂哈德·欧拉首次将它运用于数学运算。