Re: Solving on mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg88519] Re: Solving on mathematica
- From: dh <dh at metrohm.ch>
- Date: Wed, 7 May 2008 07:08:25 -0400 (EDT)
- References: <fvpctc$mkh$1@smc.vnet.net>
Hi Chris,
there is not enough information in your equations to distinguish Uz from
Cb. In your equation they appear always as Uz-Cb. Therefore, either
your equations are wrong or you need to replace the 2 independent
variables Uz and Cb by a single variable and reduce the number of
equations to 3.
hope this helps, Daniel
Chris wrote:
> How would i go about solving this equaiton on mathematica
>
> (Xi -Ux)^2 + (Yi - Uy)^2 + (Zi - Uz) = (Ri - Cb)
> i = 1,2,3,4
>
> where we need to find Ux, Uy, Uz, Cb tried a few things and they dont work.
>
> NSolve[ (Xi - U)^2 + (Yi - V)^2 + (Zi - W)^2 == (Ri - B)^2, {U, V, W,
> B}, { i = 1, 2, 3, 4} ]
>
> any ideas?
>