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MathGroup Archive 2005

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Re: something like dB

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56581] Re: something like dB
  • From: David Bailey <dave at Remove_Thisdbailey.co.uk>
  • Date: Fri, 29 Apr 2005 03:21:08 -0400 (EDT)
  • References: <d4q0rb$o8i$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

Defining an upvalue:

dB/:Times[0,dB]=1

worked for me with 5.1, and 0 dB does indeed then avaluate to 1.

However, I am not sure it is a good idea to do that sort of thing 
because it could  lead to confusion. I would always use CircleTimes to 
define a multiplication that wasn't!

David Bailey
dbaileyconsultancy.co.uk


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