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Re: Transformation rule problem

• To: mathgroup at smc.vnet.net
• Subject: [mg58167] Re: Transformation rule problem
• From: Oliver Buerschaper <groo137vy at yahoo.co.uk>
• Date: Tue, 21 Jun 2005 06:02:40 -0400 (EDT)
• References: <d8u623$84e$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

> f //. {a^(x_)*b -> a^(x - 1)*d, a^(x_)*b^(y_) ->
>     a^(x - 1)*b^(y - 1)*d, a*b^(x_) -> b^(x - 1)*d}

I was wondering how well this solution performs... after all 
Mathematica calls this rule recursively, doesn't it? Does this affect 
the performance when compared to the single pass rule suggested by 
Roland?

Oliver