Subject: What is the equasion for a sound wave?

I have rectently written in asking about how a formula for the 
frequncies on ocataves, and the different notes.  My question was 
answered very clearly, but as always, when one quetion is answered, at 
least two more are made.  What other parts of a sound wave corespond 
with formulas in mathmatics.  Is there any corralation between the 
curviture of a wave, and the equasion "y=ax^2+bx+c"?   If not what 
equasion do we use?  All transvesal waves d pass the "Veritcal Line 
Test" I learned in Algerbra I, so it has to be a function, the only 
question is , what is the equasion.  

Re: What is the equasion for a sound wave?