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

*To*: mathgroup at smc.vnet.net*Subject*: [mg113499] Re: How to isolate the constant in a two variable equation?*From*: Bill Rowe <readnews at sbcglobal.net>*Date*: Sun, 31 Oct 2010 02:08:47 -0500 (EST)

On 10/30/10 at 4:38 PM, emammendes at gmail.com (Eduardo M. A. M.Mendes) wrote: >Many thanks. It works too but it returns curly brackets. If you want the actual number instead of a list use First, Last or Part. For example Cases[4 X*X + 3 Y*Y + 2 X*Y + 1, _?(FreeQ[#, X | Y] &)][[1]] or Last@Cases[4 X*X + 3 Y*Y + 2 X*Y + 1, _?(FreeQ[#, X | Y] &)] Bill