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Message-ID: <5530C277-CDDC-42B0-B98C-99ED3D6431BD@gmail.com>
Date: 2011-11-27T10:16:03Z
From: Victor
Subject: Transforming a string into a command

I would like to make a string executable, e.g,

s<- "ln(a+b)"
a<-1
b<-2

???? execute string s to obtain ln(a+b) ????

How can I make it?

Ciao fron Rome
Vittorio