MathGroup Archive: December 2006 [00001]

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Ask Mathematica to sub for a long expression

To: mathgroup at smc.vnet.net
Subject: [mg71868] Ask Mathematica to sub for a long expression
From: aaronfude at gmail.com
Date: Fri, 1 Dec 2006 06:22:25 -0500 (EST)

Hi,

Is it possible to ask Mathematica to replace a long expression, such as
Sqrt[a^2+b^2-2*a*b*Cos[theta]] with "c", whenever it encounters that
long expression?

Thanks!

Aaron Fude

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