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

MathGroup Archive 2008

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

Search the Archive

Re: Solve[] doesn't

  • To: mathgroup at smc.vnet.net
  • Subject: [mg90640] Re: Solve[] doesn't
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 17 Jul 2008 05:35:13 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <g5kil1$8lf$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

Solve[Eliminate[{x - y == 1,
    x^2 + y^2 == 3,
    x^3 - y^3 == 4}, y], x]

work fine with Mathematica 6.0.3 ..

Regards
   Jens

Hauke Reddmann wrote:
> This is extremely annoying.     
> I have a very large (this seems to be critical) equation
> system. It's partly linear, partly horror, but already
> after I solve the linear part, a certain solution (which
> is obviously one since substituting it in makes all equations
> identical zero) can't be found anymore. The solution has some
> surds (this also seems critical, the ones without are found) 
> but the equations are strictly polynomic.
> 
> Faked Example (the real one only PM-ed, since it's a bit
> oversized):
> 
> x-y=1
> x^2+y^2=3
> x^3-y^3=4
> and after y was eliminated, it doesn't find x. (=golden mean here)
>   
> Huh?


  • Prev by Date: Re: Formatting Plot Legends
  • Next by Date: Re: Solve[] doesn't
  • Previous by thread: Re: Solve[] doesn't
  • Next by thread: Re: Solve[] doesn't