SQL Server/T-SQL/Transact SQL/LOG

LOG is the inverse of EXP, and this can be demonstrated by

1> -- LOG is the inverse of EXP, and this can be demonstrated by:
2>
3> SELECT LOG(EXP(2))
4>
5> GO
------------------------
                       2
(1 rows affected)
1>

Log: Takes one positive valued parameter, and returns the natural logarithm of this parameter as a float value

1> -- LOG
2>
3> -- Takes one positive valued parameter, and returns the natural logarithm of this parameter as a float value.
4>
5> SELECT LOG(5.67)
6> GO
------------------------
      1.7351891177396608
(1 rows affected)
1>