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Re: Differencing two equations

Thanks for this response that gives me a new and useful way to look at this.  It's amazing how a shift in perspective can help sometimes...

On Feb 12, 2013, at 10:14 AM, "djmpark" <djmpark at> wrote:

> Sometimes I think Mathematica might better be called MetaMathematica, not so
> much a tool for doing mathematics but a tool for making the tools to do
> mathematics.
> Quite often it will be very useful to "combine and repackage" Mathematica
> procedures into forms that are more natural and convenient for your
> application. Writing some definitions and functions along these lines can be
> very useful. You don't have to limit yourself to the hooks and buttons that
> are manifest in plain Mathematica.
> David Park
> djmpark at
> From: G B [ at]
> Maybe there's a mathematical reason why simple operations on equations
> aren't handled as I'd expect.  Mathematica is clearly a powerful tool, but
> the few times I've tried picking it up in the past I wind up getting stymied
> by the obtuse syntax for certain simple operations.
> In this case, I could probably use the power of the tool all at once by
> simply treating my set of equations as a unit and asking Mathematica to
> reason about them as a group and solve my problem directly.  The problem is
> that I, and my audience, could probably gain some insight into the problem
> by working through a few of the intermediate results.  By treating my
> equations lexically, rather than mathematically, I'm forgoing Mathematica's
> expertise and only allowing it to ensure I don't make transcription errors.

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