Simply put: cents = ln(R)/ln(2) x 1200 where R is the ratio of the frequency in question over the frequency of equal temperament AND ln is the natural log function (ln is a function button on most calculators). To find the frequency from a cents value: frequency = 440 x 2^(n/12) x 2^(cents/1200) where n is the number of half steps the note is away from 440 ( n is negative if it is below 440 and positive otherwise). ^ means to the power of. Is no one interested in working here at CCM?
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