"Cycles Per Sec vs. Cents/Ratio

[Richard Moody]

If you use spread sheets the following formula will paste directly in. (Quatro and
MSworks). MSworks ignores the @ symbol.  

@LOG(442/440)/@LOG(2)*1200

This returns 7.851415 

this is the cents "difference" betweeen A442 and 440. If you put a smaller freq "on
top" you get a neg number.   ie     LOG(440/442)/LOG(2)*1200      gives -7.851415. 	

So for the cents difference between any two frequencies put them in place of
442/440. 
It also works for ratios  like 3/2.  or 18/17.   or 81/80           . ---ric


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>>The question in 
> >the group was  if the cents of deviation was equally spaced between each 
> >change of cycles per second deviation, ie; A441= 3.6, 4.1 or 5.0 cents above 
> >A440........A442= 8.0 9.0 or 10 cents above A440. And additionally which 
> >cents deviation is correct.