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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cologarithm ： ウィキペディア英語版 Cologarithm In mathematics, the base-''b'' cologarithm, sometimes shortened to colog, of a number is the base-''b'' logarithm of the reciprocal of the number. It is equal to the ''negative'' base-''b'' logarithm of the number. :$\backslash operatorname\_b\backslash \; x\; =\; \backslash log\_b\; \backslash left(\backslash frac\; \backslash right)\; =\; \backslash log\_b\; 1-\backslash log\_b\; x\; =\; -\backslash log\_b\; x\; \backslash ,$ In chemistry, a decimal cologarithm is indicated by the letter p. This usage originated with the quantity pH, defined as –log10 (). Based on pH, the quantity p''K''a was later defined as –log10 ''K''a. == References == *(Meriam Webster definition of cologarithm ) *( "Cologarithm." From MathWorld--A Wolfram Web Resource. ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cologarithm」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.