This Oracle tutorial explains how to use the Oracle/PLSQL EXP function.
EXP
returns e raised to a value.
The syntax for the Oracle/PLSQL EXP function is:
exp( number )
number is the power to raise e to.
SQL> select exp(3) from dual;
-- from www . ja va 2 s.c o m
EXP(3)
----------
20.0855369
SQL> select EXP(1) from dual;
EXP(1)
----------
2.71828183
SQL> select EXP(2) from dual;
EXP(2)
----------
7.3890561
SQL>