This
will raise e value to the give power.
Syntax: exp (value)
Ex:
SQL> select exp(1), exp(2), exp(0), exp(null), exp(-2) from dual;
EXP(1) EXP(2) EXP(0) EXP(NULL)
EXP(-2)
-------- --------- -------- ------------- ----------
2.71828183 7.3890561 1 .135335283