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Re: How to isolate the constant in a two variable equation?
*To*: mathgroup at smc.vnet.net
*Subject*: [mg113465] Re: How to isolate the constant in a two variable equation?
*From*: "Nasser M. Abbasi" <nma at 12000.org>
*Date*: Sat, 30 Oct 2010 04:35:55 -0400 (EDT)
*References*: <iae7ok$7qd$1@smc.vnet.net>
*Reply-to*: nma at 12000.org
On 10/29/2010 3:30 AM, Eduardo M. A. M.Mendes wrote:
> Hello
>
>
>
> 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?
one way:
In[92]:= Clear[x,y]
eq=4x*x+3y*y+2x*y+1;
Coefficient[Coefficient[eq,x,0],y,0]
Out[94]= 1
--Nasser
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