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MathGroup Archive 2005

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Re: What is causing this error message?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg57549] Re: [mg57537] What is causing this error message?
  • From: "Jaccard Florian" <Florian.Jaccard at he-arc.ch>
  • Date: Wed, 1 Jun 2005 06:01:33 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello !

== , not =
x*y, not xy

So , 
NSolve[{(x^3)*y + x*y - 10 == 0, x*y^2 - x*y + 6 == 0}, {x, y}]
Would be the correct input.

Maybe you would also be interested in :

Reduce[{(x^3)*y +
     X*y - 10 == 0, x*y^2 - x*y + 6 == 0}, {x, y},
       Reals, Backsubstitution -> True] // N


Regards
 
F.Jaccard


-----Message d'origine-----
De : Bookreader [mailto:bookreader127 at yahoo.com] 
Envoyé : mardi, 31. mai 2005 11:01
À : mathgroup at smc.vnet.net
Objet : [mg57537] What is causing this error message?

	NSolve[{x^3y + xy - 10 = 0, xy^2 - xy + 6 = 0}, {x, y}]

	Set::write: Tag Plus in -10 + x y + x^3  y is Protected. More...

	Please tell me how to correct this.

	Thanks.


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