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twelfth root of two
The twelfth root of two or is an algebraic irrational number. It is most important in music theory, where it represents the frequency ratio of a semitone in twelve-tone equal temperament.
==Numerical value==
Its value is approximately 1.0594630943592952645, which is slightly more than ≈ 1.0588 ( is a better fraction; is better still). As of December 2013, its numerical value in decimal has been computed to at least twenty billion digits.〔Lukasz Komsta: ''(Computations page )''〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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