Variables invented by to_poly



On Thu, 12 Jun 2008, Barton Willis wrote:

>> When I run to_poly() on a particular expression, to_poly() invents
>> variables called %g3 and %g4, which it uses in its output.  Any
>> ideas what these variables mean, please?

> For some expressions, it is convient to introduce additional
> variables to do the conversion. So to_poly invents new variables. If
> you don't like these variables, you should be able to eliminate them
> with 'elim'

Thanks Barton.  Is 'elim' documented anywhere?  I can't quite suss out
how to use it.

-- 

Thanks again,

Dan