antilogarithm

1 9.9

A number that gives a given value when you take its logarithm

noun
/ˌæntɪˈlɒɹɪðəm/

Specialized

: antilogaritmo

The antilogarithm of 2 is 100.

Examples

To find the antilogarithm, you must use the base of the logarithm.
To find the antilogarithm of a number, you raise the base to the power of that number.
The antilogarithm of 2 is 100 when working with base 10.
To solve the equation, you need to find the antilogarithm of each side.
Using tables, scientists could quickly determine the antilogarithm before calculators were common.
In mathematics, the antilogarithm is used to convert logarithmic values back to their original forms.
When you calculate the antilogarithm, you are essentially reversing the process of taking a logarithm.

Synonyms

antilog

vsantilogarithm

Specialized

9.9

The number you get when you use a logarithm as the exponent

is the longer, more formal term for the identical mathematical result

Antonyms

logarithm

Specialized

5 8.4

The power you must raise a fixed number to get a given number

Surface Forms

antilogarithm singular

antilogarithms plural

Morphology

antilogarithm = logarithm (semi-transparent) = anti + logarithm

The word clearly combines 'anti-' with 'logarithm', but the mathematical sense of 'anti-' as 'inverse' is somewhat specialized.

Etymology

Antilogarithm is made of anti- meaning 'opposite' and logarithm, a math tool for numbers, so an antilogarithm is the 'opposite' of a logarithm and gives the original number back. You can remember anti- from words like antifreeze or antibiotic, where it also means 'against' or 'opposite'.