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In mathematics, a logarithm is the inverse function of exponentiation. It is another way of writing exponents.
A logarithm is the power to which a base must be raised to yield a given number. For example, the logarithm of 1,000 with a base of 10 is 3 because 10 raised to the third power equals 1,000.
Here are some examples of logarithms: Folding paper: How many times you need to fold a sheet of paper to get 64 layers Measuring molecules: How many molecules from the original liquid are left after a C dilution Sound intensity: How much power is needed to increase a speaker's volume by 10 decibels (dB)
There are two types of logarithms: Common logarithm: Also called the base 10 logarithm, it is represented as log10 or simply log. Natural logarithm: Also called the base e logarithm, it is represented as ln or loge.
Logarithms are used in linear regression and to make graphs of exponential data easier to interpret.
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