Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2008

[Date Index] [Thread Index] [Author Index]

Search the Archive

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?

> 




  • Prev by Date: Re: Problem: is not a list of numbers with dimensions
  • Next by Date: Stop cell tags propagating to generated cells
  • Previous by thread: Solving on mathematica
  • Next by thread: Re: Solving on mathematica