log₍b₎(x) = log(x) / log(b)
Used to calculate logarithms with any base.
ln(x) = logₑ(x)
Natural log uses base e ≈ 2.71828.
A logarithm is the inverse of exponentiation. If bʸ = x, then log₍b₎(x) = y.
The common logarithm uses base 10 and is written as log(x).
Log base 10 calculates the power required to raise 10 to get a number.
Natural logarithm uses base e (2.71828) and is written as ln(x).