Calculate logarithms in any base, natural logarithms (ln), log base 2, log base 10, and antilogarithms.
Calculate logb(x)
Antilogarithm (inverse log)
| Logarithm | Value |
|---|
| Rule | Formula |
|---|---|
| Product rule | logb(xy) = logb(x) + logb(y) |
| Quotient rule | logb(x/y) = logb(x) − logb(y) |
| Power rule | logb(xⁿ) = n·logb(x) |
| Change of base | logb(x) = log(x)/log(b) = ln(x)/ln(b) |
| Inverse | logb(bˣ) = x and b^logb(x) = x |