Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

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

Search the Archive

RE: List of solution

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46984] RE: [mg46977] List of solution
  • From: "Florian Jaccard" <florian.jaccard at eiaj.ch>
  • Date: Thu, 18 Mar 2004 04:37:44 -0500 (EST)
  • Reply-to: <florian.jaccard at eiaj.ch>
  • Sender: owner-wri-mathgroup at wolfram.com

Hello !

C'est très simple :

In[4]:=
liste = {{x -> 0, y -> 0}, {x -> 1, y -> 0},
   {x -> I, y -> 1 + 2*I}}

Out[4]=
{{x -> 0, y -> 0}, {x -> 1, y -> 0},
  {x -> I, y -> 1 + 2*I}}

In[5]:=
DeleteCases[liste, {x -> xx_, y -> yy_} /;
   Im[xx] != 0 || Im[yy] != 0]

Out[5]=
{{x -> 0, y -> 0}, {x -> 1, y -> 0}}



Meilleures salutations

Florian Jaccard


-----Message d'origine-----
De : Clément [mailto:rusheraquatic at ifrance.com]
Envoyé : jeu., 18. mars 2004 07:25
À : mathgroup at smc.vnet.net
Objet : [mg46977] List of solution


Hello MathGroup,

I have resolved an equation. So i have a list of solution like : {{x->0,
y->0}{x->1, y->0}{x->i, y->1+2i}}
I want to remove the complex solutions of this list.
How can i do ?

Thanks




  • Prev by Date: RE: List of Variables and manipulating them ...
  • Next by Date: Re: DSolve problem solving an elemental DE in Math 5.0.1
  • Previous by thread: Re: List of solution
  • Next by thread: Re: List of solution