cologarithm


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co·log·a·rithm

 (kō′lô′gə-rĭth′əm, -lŏg′ə-)
n.
The logarithm of the reciprocal of a number.

cologarithm

(kəʊˈlɒɡəˌrɪðəm)
n
(Mathematics) the logarithm of the reciprocal of a number; the negative value of the logarithm: the cologarithm of 4 is log . Abbreviation: colog

co•log•a•rithm

(koʊˈlɔ gəˌrɪð əm, -ˌrɪθ əm, -ˈlɒg ə-)

n.
the logarithm of the reciprocal of a number, often used in expressing the logarithm of a fraction.
[1880–85]
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