| Definitions | | logarithm |
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noun
- (mathematics) For a number <math>x</math>, the power to which a given base number must be raised in order to obtain <math>x</math>. Written <math>\log_b x</math>. For example, <math>\log_{10} 1000 = 3</math> because <math>10^3 = 1000</math>.
Etymology: From logarithmus, term coined by Scot mathematician w:John Napier, John Napier from (logos) "word, reason" and (arithmos) "number".
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Full Definition of logarithm
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