LN()
Natural logarithm
DOUBLE PRECISION
LN (number)
Parameter | Description |
---|---|
number |
An expression of a numeric type |
An error is raised if the argument is negative or 0.
LN()
Natural logarithm
DOUBLE PRECISION
LN (number)
Parameter | Description |
---|---|
number |
An expression of a numeric type |
An error is raised if the argument is negative or 0.
LOG()
Logarithm with variable base
DOUBLE PRECISION
LOG (x, y)
Parameter | Description |
---|---|
x |
Base.An expression of a numeric type |
y |
An expression of a numeric type |
Returns the x-based logarithm of y.
If either argument is 0 or below, an error is raised.
If both arguments are 1, NaN
is returned.
If x = 1 and y < 1, -INF
is returned.
If x = 1 and y > 1, INF
is returned.