| Formula Functions > Functions H to L > LOG |
This function returns the logarithm base Y of a number X.
LOG(number,base)
This function has these arguments:
| Argument | Description |
|---|---|
| number | Number for which to find a logarithm. This must be a positive real number |
| base | [Optional] Base of the logarithm; if omitted, the calculation uses 10 as the base (See LOG10.) |
Accepts numeric data for both arguments. Returns numeric data.
LOG(B3,C5)
LOG(R1C2,R4C4)
LOG(255,16) gives the result 1.9985883592
This function is available in product version 1.0 or later.
LN | LOG10 | Math and Trigonometry Functions