# logarithm

[law-guh-rith-uh m, -rith-, log-uh-]

### noun Mathematics.

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).

## Origin of logarithm

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## Related Words for logarithm

numeral, numerical, arithmetic, binary, exponent, fraction, fractional, integral, mathematical, statistical, algebraic, algorithmic, arithmetical, differential, digital, exponential, logarithm, logarithmic, numerary, integrated## Examples from the Web for logarithm

### Historical Examples of logarithm

That was short for logarithm, you know, because I was such a log at arithmetic.

Adam Johnstone's SonF. Marion Crawford

The complement of the logarithm of a sine, tangent, or secant.

The Sailor's Word-BookWilliam Henry Smyth

It seems that gravitation is not truth, but only the logarithm of it.

A Budget of Paradoxes, Volume I (of II)Augustus De Morgan

To find the logarithm of 2, Briggs raised it to the tenth power, viz.

For example, suppose the logarithm of 543839 required to twelve places.

## logarithm

### noun

## Word Origin for logarithm

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Online Etymology Dictionary, © 2010 Douglas Harper

## logarithm

[lô′gə-rĭð′əm]

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.