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Re: Approximation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg116475] Re: Approximation
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Wed, 16 Feb 2011 04:37:39 -0500 (EST)

Perhaps something like

Normal[Series[expr /. R -> k*G, {k, 0, 1}]] /. k -> R/G


Bob Hanlon

---- Rui <rui.rojo at gmail.com> wrote: 

=============
Is there a way to tell Mathematica to simplify and approximate an
expression assuming things such as "R is a lot smaller than G"/ R<<G ?
If not so, how would you approach the problem?

Thanks




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