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Quick math calc on any buffer

From: Rodrigo Lazo
Subject: Quick math calc on any buffer
Date: Sat, 21 Feb 2009 11:42:35 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

Hi all,

Is there a way to compute a math expression on any buffer? I mean, if I
have a buffer with the following expression

2 + 3 

I want to mark the region and compute the result

2 + 3 = 5

It doesn't seems too hard to do, I've looked on calculator.el for a
"computing" function I can call but I didn't find it. 



Rodrigo Lazo (rlazo)

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