Re: Simple Q: How to give computed results from NSolve to
- To: mathgroup at smc.vnet.net
- Subject: [mg87261] Re: [mg87240] Simple Q: How to give computed results from NSolve to
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Sun, 6 Apr 2008 06:40:46 -0400 (EDT)
- Reply-to: hanlonr at cox.net
Select (highlight) the -> and hit F1 key
soln = {{x -> 1, y -> 2}};
z = x^2 + Sqrt[x*y] /. soln[[1]]
1 + Sqrt[2]
Bob Hanlon
---- "loveinla at gmail.com" <loveinla at gmail.com> wrote:
> Hi, guys,
>
> I am new to Mathematica. And I just have a simple question for you:
>
> I have solved a system of equations by NSolve. And for instance, it returns the results as
> Root={{x->1,y->2}}.
>
> And now I want to use the computed results, say x & y to define a new variable
> Z=x^2+sqrt(xy).
>
> How should I use computed x and y to define the new variable Z?
>
> Thanks in advance.
>