logarithm
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logarithm
- /ˈlɒɡ.ə.ɹɪ.ð(ə)m/ UK
- /ˈlɔɡ.ə.ɹɪ.ð(ə)m/ UK
- /ˈlɑ.ɡə.ɹɪ.ð(ə)m/ US
- /ˈlɑ.ɡəɹ.ɹɪ.ðəm/ US
- /ˈlɑɡ.ə.ɹɪðm/ US
- /ˈlɑɡ.əɹ.ɹɪðm/ US
- /ˈlɑ.ɡə.ɹɪ.ð(ə)m/ Canada
Where it comes from
From New Latin logarithmus, coined by Scottish mathematician John Napier from Ancient Greek λόγος (lógos, “ratio, proportion”) and ἀριθμός (arithmós, “number”). Napier set a geometric progression (a sequence of equal ratios) against an arithmetic progression (a sequence of equal differences), so that the logarithm of a number counts the ratios separating it from a starting value, turning multiplication into addition.
noun logarithms
-
For a number x, the exponent by which a given base number must be raised in order to obtain the power x. Written log _bx. For example, log ₁₀1000=3 because 10³=1000 and log ₂16=4 because 2⁴=16.
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.
Similar: log
Translations
Every language
noun The power to which a given base number must be raised in order to obtain a given number
| Español | logaritmo |
|---|---|
| 한국어 | 로그 rogeu, 대수 daesu |
| 日本語 | 対数 taisū |
| 中文 | 對數 /对数 duìshù |
| हिन्दी | लघुगणक laghugṇak |
| Português | logaritmo |
| Français | logarithme |
| Deutsch | Logarithmus |
| Italiano | logaritmo |
| Ελληνικά | λογάριθμος logárithmos |
| Română | logaritm |
| Русский | логари́фм logarífm |
| Tiếng Việt | đối số, lôga, lôgarit, lô-ga-rít |
| العربية | أَسِيس ʔasīs, لُوغَارِثْم lūḡāriṯm |
Talk about this word "logarithm." Wiktionary, via Micwyn, micwyn.com/word/logarithm. Accessed 6 Nov. 2026. logarithm. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/logarithm "logarithm." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/logarithm.Cite this
@misc{logarithm_2026,
title = {logarithm},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/logarithm},
urldate = {2026-11-06}
}
