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Re: Change of Variables

• To: mathgroup at smc.vnet.net
• Subject: [mg32518] Re: Change of Variables
• From: "David P. Johnson" <johnson at nmtx.edu>
• Date: Fri, 25 Jan 2002 02:57:47 -0500 (EST)
• Organization: New Mexico Tech
• References: <a2onns$5v9$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

In article <a2onns$5v9$1 at smc.vnet.net>, John S
<bosniajohns at hotmail.com> wrote:

> test=v/c
> Replace[test^2,v/c -> beta]
> 
> does not yield beta^2, but rather v^2/c^2.
> 
> Again, any and all help would be greatly appreciated.

Once you do the test^2, there is no v/c for the replace to find. Try:

(Replace[test,v/c -> beta])^2

-- 
-David
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