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Re: How to isolate the constant in a two variable equation?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg113477] Re: How to isolate the constant in a two variable equation?
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Sat, 30 Oct 2010 04:38:10 -0400 (EDT)

On 10/29/10 at 6:30 AM, emammendes at gmail.com (Eduardo M. A. M.Mendes)
wrote:

>I know that Coefficient can isolate the coefficient relate to the
>variables in an equation but I wonder how the constant could be
>retrieved.

>Something like

>4X*X+3Y*Y+2X*Y+1

>How to get to isolate the constant 1?

In[4]:= Cases[4 X*X + 3 Y*Y + 2 X*Y + 1, _?(FreeQ[#, X | Y] &)]

Out[4]= {1}



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