From: Albert Schlef <albertschlef@...>
Date: 2009-02-08T14:10:41+09:00
Subject: Re: Mathematical Image Generator (#191)

Di Mo wrote:
> My explanation of function depth is also somewhat confusing. If anyone
> sees what I'm getting at and wants to try and help me out with another
> explanation please do! Let me try again in the meantime:

Does "depth" equal "the number of times 'x' (or 'y') appears in the 
expression" ?
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