log·a·rithm

(lô′gə-rĭth′əm, lŏg′ə-)

n. Mathematics

The power to which a base, such as 10, must be raised to produce a given number. If n^x = a, the logarithm of a, with n as the base, is x; symbolically, log_n a = x. For example, 10³ = 1,000; therefore, log₁₀ 1,000 = 3. The kinds most often used are the common logarithm (base 10), the natural logarithm (base e), and the binary logarithm (base 2).

[New Latin logarithmus : Greek logos, reason, proportion; see leg- in Indo-European roots + Greek arithmos, number; see ar- in Indo-European roots.]

log′a·rith′mic (-rĭth′mĭk), log′a·rith′mi·cal (-mĭ-kəl) adj.

log′a·rith′mi·cal·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

logarithm

(ˈlɒɡəˌrɪðəm)

(Mathematics) the exponent indicating the power to which a fixed number, the base, must be raised to obtain a given number or variable. It is used esp to simplify multiplication and division: if a^x = M, then the logarithm of M to the base a (written logaM) is x. Often shortened to: log See also common logarithm, natural logarithm

[C17: from New Latin logarithmus, coined 1614 by John Napier, from Greek logos ratio, reckoning + arithmos number]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

log•a•rithm

(ˈlɔ gəˌrɪð əm, -ˌrɪθ-, ˈlɒg ə-)

n.

the exponent of the power to which a base number must be raised to equal a given number; log: 2 is the logarithm of 100 to the base 10 (2 = log₁₀ 100).

[1605–15; < New Latin logarithmus < Greek log- log- + arithmós number; see arithmetic]

log·a·rithm

(lô′gə-rĭth′əm)

The power to which a base must be raised to produce a given number. For example, if the base is 10, then 3 is the logarithm of 1,000 (written log 1,000 = 3) because 10³ = 1,000.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

logarithm

- From Greek logos, "reckoning, ratio," and arithmos, "number."

logarithm

[ˈlɒgərɪθəm] N → logaritmo m

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

logarithm

[ˈlɒgərɪð^əm] n → logarithme mlog book n

(formerly) (= registration document) [car] → carte grise

[traveller, explorer] → carnet m de route; [lorry driver] → carnet m de route

[movement of goods] → registre mlog cabin n → cabane f en rondinslog fire n → feu m de bois

logarithm

n → Logarithmus m

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

logarithm

[ˈlɒgəˌrɪð/əm] n → logaritmo
common logarithm → logaritmo decimale or volgare

logarithm

(ˈlogəriðəm) noun

(abbreviated to log (log) ) the number of times eg 10 must be multiplied by itself to produce a particular number. 10  10  10 or 10³ = 1,000, so 3 is here the logarithm of 1,000.