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From: Ruben Safir <ruben@mrbrklyn.com>
Newsgroups: comp.lang.c++
Subject: algrabraic equations
Date: Wed, 1 Jun 2011 16:17:52 +0000 (UTC)
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how would someone parse an advanced algrabiac expression that is a string

something like 

(3*x^3 - 2*x^2 - 4)/(x^2 +7)

Ruben