MySQL exp()函数
EXP(X)
此函数返回e(自然对数的底)到X次方的值此函数返回e(自然对数的底)的X次方的值
mysql>SELECT EXP(3); +---------------------------------------------------------+ | EXP(3) | +---------------------------------------------------------+ | 20.085537 | +---------------------------------------------------------+ 1 row in set (0.00 sec)