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Re: How to get the corresponding coefficients?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125881] Re: How to get the corresponding coefficients?
  • From: Rodrigo Murta <murta at rodrigomurta.com>
  • Date: Thu, 5 Apr 2012 05:57:56 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <jlh17t$42$1@smc.vnet.net>

On Apr 4, 5:37 am, simplerbysimp... at gmail.com wrote:
> If    exp:= x3 Exp[x1+x2];
> How can I get the coefficient x3 and the exponential x1+x2 from the exp in a simple way?

Hi Titus

    There are 2 ways:

t = x3 Exp[x1 + x2]
(*visualize the structure using*)
TreeForm[t]

(*get itens*)
t[[1, 2]]
t[[2]]

or using pattern
t /. a_ Exp[b_] -> b

Best Regards
Murta



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