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cSolve()
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cSolve() définit temporairement le domaine
sur complexe pendant la résolution, me
si le domaine courant est réel. Dans le
domaine complexe, les puissances
fractionnaires possédant un dénominateur
impair utilisent la branche principale plutôt
que la branche réelle. Par conséquent, les
solutions de solve() pour les équations
impliquant de telles puissances
fractionnaires n'appartiennent pas
nécessairement à un sous-ensemble de
celles de cSolve().
cSolve() commence la résolution en
utilisant les méthodes symboliques exactes.
Excep en mode Exact, cSolve() utilise
aussi une factorisation itérative approchée
des polymes complexes, si nécessaire.
Remarque : voir aussi cZeros(), solve() et
zeros().
En mode Afficher chiffres, Fixe 2 :
Pour afficher le résultat entier, appuyez sur
5, puis utilisez les touches 7et8 pour
déplacer le curseur.
cSolve(Équation1andÉquation2 [and],
VarOuInit1, VarOuInit2 [, ])
expressionbooléenne
cSolve(SystèmeÉqu, VarOuInit1,
VarOuInit2 [, ]) expressionbooléenne
Donne les solutions complexes possibles
d'un système d'équations algébriques,
chaque VarOuInit définit une variable dont
vous cherchez la valeur.
Vous pouvez également spécifier une
condition initiale pour les variables. Chaque
VarOuInit doit utiliser le format suivant :
variable
ou
variable = nombre el ou non el
Par exemple, x est autorisé, de même que
x=3+i.
46


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