logarithm
Definition from Wiktionary, the free dictionary
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English [edit]
Pronunciation [edit]
Etymology [edit]
From New Latin logarithmus, term coined by Scot mathematician John Napier from Ancient Greek λόγος (logos, “word, reason”) and ἀριθμός (arithmos, “number”).
Noun [edit]
logarithm (plural logarithms)
- (mathematics) For a number
, the power to which a given base number must be raised in order to obtain . Written 
. For example, 
because 
and 
because 
.
- For a currency which uses denominations of 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, etc., each jump in the base-10 logarithm from one denomination to the next higher is either 0.3010 or 0.3979.
, the 
. For example, 
because 
and 
because 
.
Translations [edit]
for a number x, the power to which a given base number must be raised in order to obtain x
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