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Logarithm (Abbr. Log)

Definition: In mathematics, the logarithm of a number to a given base is the power or exponent to which the base must be raised in order to produce the number. For example, the base10 logarithm of 1000 is 3, because 3 is the power to which ten must be raised to produce 1000: 10^3 = 1000, so log10 of 1000 = 3.
Source: http://en.wikipedia.org/wiki/Logarithm

Example: log10 of 1000 = 3. ln e = 1.

Listed under: Algebra, Precalculus
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