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cologarithm

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co⋅log⋅a⋅rithm

[koh-law-guh-rith-uhm, -rith-uhm, -log-uh-]
–noun Mathematics.
the logarithm of the reciprocal of a number, often used in expressing the logarithm of a fraction: log 7/25 = log 7 + colog 25. Symbol: colog

Origin:
1880–85; co- + logarithm
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To cologarithm
co·log·a·rithm   (kō'lô'gə-rĭth'əm, -lŏg'ə-)   
n.  The logarithm of the reciprocal of a number.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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