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From: gevins@ptolemy.arc.nasa.gov (Jody Gevins)
Newsgroups: comp.lang.lisp
Subject: Algebraic manipulator sought
Summary: symbolics, simple
Message-ID: <9024@ptolemy.arc.nasa.gov>
Date: 2 Nov 90 23:55:41 GMT
References: <1990Oct26.122649.7033@cs.nott.ac.uk> <1990Oct26.123828.7308@cs.nott.ac.uk> <1990Oct31.155432.16911@ulrik.uio.no>
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I'm looking for a simple algebraic manipulator which will run
on a Symbolics.  It should be able to take something like:

(x = 14y + z), and 'z

and return: z = x - 14y   (i.e.  solving the equation for z).

Not much more complicated than that.  Does anyone know of such
a package that wouldn't cost (too much) money?  Macsyma is an
overkill of such a pkg, and is VERY expensive.

Thanks,
Jody