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RE: List of solution


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




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