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Calculating Semitones in an octave

From: harish3679
Subject: Calculating Semitones in an octave
Date: Wed, 29 Jan 2020 10:53:39 -0600 (CST)

Hi guys,

To find frequency using semitones value from A=440Hz

We have, f = 2^(n/12)*440 //where n is the semitone value

Now, to find semitone value for A=432Hz from 440Hz

It is 432 = 2^(n/12)*440

I came up with 2^n=0.92668

Although have no clue how to calculate this in octave rather got an error

parse error:

  invalid left hand side of assignment"

Someone, please shed light on this part


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