Cologarithm: Difference between revisions

Revision as of 09:31, 17 June 2011 edit117.197.100.71 (talk) →References ← Previous edit		Latest revision as of 20:38, 9 February 2023 edit undo1234qwer1234qwer4 (talk \| contribs)Extended confirmed users, Page movers197,945 edits Added {{R from related word}}, {{R printworthy}} and {{R with history}} tags to redirectTag: Twinkle
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			#REDIRECT ]
	In ], the base-''b'' '''cologarithm''', sometimes shortened to '''colog''', of a number is the base-''b'' ] of the ] of the number. It is equal to the ''negative'' base-''b'' logarithm of the number.

	:<math> \operatorname{colog}_b\ x = \log_b \left(\frac{1}{x} \right) = \log_b 1-\log_b x = -\log_b x = \log_{1/b} x.\, </math>
	In ], a decimal cologarithm is indicated by the letter p (originally the Greek letter ρ){{Fact\|date=June 2009}}.<br />For example, ] = – log<sub>10</sub> ''K'' and ] = – log<sub>10</sub> .

	*[According to Google, the cologarithm of x is the logarithm of (1/x.)

	In 40 years doing maths and engieering, I never heard of this before today.

	It seems a completely pointless bit of terminology, because log(1/x) is just -log x.]
	== References ==

	*
	*

	{{algebra-stub}}

	]		]

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Latest revision as of 20:38, 9 February 2023

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