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EnglishEdit

 
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PronunciationEdit

  • (US) IPA(key): /ˈlɑ.ɡə.ɹɪ.ð(ə)m/, /ˈlɑɡəɹ.rɪ.ðəm/, /ˈlɑɡ.ə.ɹɪðm/, /ˈlɑɡ.əɹ.rɪðm/
  • Hyphenation: log‧a‧ri‧thm

EtymologyEdit

From New Latin logarithmus, term coined by Scot mathematician John Napier from Ancient Greek λόγος(lógos, word, reason) and ἀριθμός(arithmós, number); compare rational number, from analogous Latin.

NounEdit

logarithm ‎(plural logarithms)

  1. (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.

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