Function Names
ln, logDescription
ln(x) calculates logarithm on base e
log(x) calculates logarithm on base 10.
Call as: function
Restrictions
Indirect parameter passing is disabled
Parameter count
1
Parameters
| No. | Type | Description |
|---|---|---|
| 1 input |
numeral | Value Value to use for logarithmic calculation |
Return value
| Type | Description |
|---|---|
| numeral | Result Calculated logarithm value |
Examples
echo( log( 1000 ), " ", log( 0.001 ) );
echo( ln(1000) / ln( 10 ), " ", ln( 0.001) / ln(10) );Output
3 -3
3 -3