Re: derivative notation

From: Bill Smythe (chichess_at_beforeRCNafter.com)
Date: 01/25/05 

Date: Tue, 25 Jan 2005 02:02:41 -0600

One way to look at it is that dy / dx is not a fraction; rather, it is the
limit of a fraction. Accordingly, it often behaves like a fraction, so it
is often possible to play fast and loose with it. For example, under
appropriate conditions ( dy / dx ) * ( dz / dy ) is equal to dz / dx .

Bill Smythe