logarithm

- noun the power to which a base must be raised to
__equal__a__given__number

- The power to which a base, such as e or 10, must be raised, to produce a given number. For example, log
_{e}y = n, where e is the base, y is the power, and n is the resulting number. A logarithm has two portions, the characteristic, which is an integer, and the mantissa, which is a__decimal__. Its abbreviation is log.

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