Logarithm Change of Base
Rewrites a logarithm using another base.
log_b(x)=ln(x)/ln(b)
Variables
- x
- positive argument
- b
- positive base not 1
Example
log₂8=ln8/ln2=3
How to use this formula
Identify the known values, keep units consistent, substitute the values into the formula, and calculate carefully. Then check whether the result is reasonable for the original problem.