log·​a·​rithm | \ ˈlȯ-gə-ˌri-t͟həm How to pronounce logarithm (audio) , ˈlä- \

Definition of logarithm

: the exponent that indicates the power to which a base number is raised to produce a given number the logarithm of 100 to the base 10 is 2

Other Words from logarithm

logarithmic \ ˌlȯ-​gə-​ˈrit͟h-​mik How to pronounce logarithm (audio) , ˌlä-​ \ adjective
logarithmically \ ˌlȯ-​gə-​ˈrit͟h-​mi-​k(ə-​)lē How to pronounce logarithm (audio) , ˌlä-​ \ adverb

Examples of logarithm in a Sentence

Recent Examples on the Web The same team also computed a discrete logarithm of a different key of the same size. Dan Goodin, Ars Technica, 5 July 2022 Technology is great, but sometimes answers are simpler than a logarithm. Expert Panel®, Forbes, 21 Apr. 2022 Traditional encryption uses schemes based on complex mathematics such as factoring (breaking an integer down to its prime factors) or discrete logarithm. Adrienne Bernhard, Popular Mechanics, 26 Oct. 2021 Given that a function can’t be divided by zero and zero has no logarithm, this value might cause software to malfunction if it wasn’t specifically planned for. Adrienne Bernhard, Popular Mechanics, 2 July 2021 Though Dvorkin attributes secrecy behind the FICO logarithm to the spreading of myths about precise math behind creating the credit risk score commonly used by lenders, FICO does offer up some of the details. Rich Exner, cleveland, 29 Apr. 2021 Finding the power of 10 that a number is raised to is exactly what a logarithm does. Rhett Allain, Wired, 27 Nov. 2020 In a simple statistical model, Manrubia and her colleagues showed that the average number of generations separating two random present-day individuals from a common genealogical ancestor depends on the logarithm of the relevant population’s size. Scott Hershberger, Scientific American, 5 Oct. 2020 The new algorithm checks planarity in a number of steps proportional to the cube of the logarithm of the number of nodes in the graph — an exponential improvement. Quanta Magazine, 15 Sep. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'logarithm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of logarithm

circa 1616, in the meaning defined above

History and Etymology for logarithm

New Latin logarithmus, from log- + Greek arithmos number — more at arithmetic

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Time Traveler for logarithm

Time Traveler

The first known use of logarithm was circa 1616

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Dictionary Entries Near logarithm



logarithmic curve

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Last Updated

18 Jul 2022

Cite this Entry

“Logarithm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/logarithm. Accessed 17 Aug. 2022.

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More from Merriam-Webster on logarithm

Nglish: Translation of logarithm for Spanish Speakers

Britannica.com: Encyclopedia article about logarithm


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