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Appendice
<#016> Calculer an +1 = an + 2n (a1 = 1) lorsque la valeur de an
change de a2 à a5. (Résultats : a2 = 3, a3 = 7, a4 = 13,
a5 = 21)
*1 Affecte 1 à a1.*2Affecte 1 à n.
*3 Valeur de a2 *4 Affecte une valeur à a2.
*5 Affecte 2 à n.*6Valeur de a3
*7 Valeur de a4 *8 Valeur de a5
Utilisation de SOLVE (COMP)
SOLVE emploie la formule d’approximation de Newton pour résoudre
les équations.
Vous pouvez utiliser SOLVE dans le mode COMP (N1)
seulement.
kRègles régissant les équations lorsque
SOLVE est utilisé
•Vous pouvez utiliser les types de syntaxes suivantes pour la
variable solution.
Exemple : Y = X + 5, Y (Résolution de Y.);
XB = C + D, B (Résolution de B.)
La syntaxe de la fonction logarithmique (log) est la suivante.
Y = X × log(2 (Lorsque la spécification de la variable « ,X »
est omise, l’équation Y = X × log
10
2 est résolue
pour X.)
Y = X × log(2,Y (Lorsque la spécification de la variable « ,Y »
est omise, l’équation Y = X × log
10
2 est résolue
pour Y.)
Y = X × log(2,Y) (Lorsque la spécification de la variable « ,X »
est omise, l’équation Y = X × log2Y est résolue
pour X.)
•Sauf mention contraire, l’équation est résolue pour X.
Exemple : Y = X + 5, X = sin(M), X + 3 = B + C,
XY + C (traité comme XY + C = 0.)
SOLVE ne peut pas être utilisé pour résoudre une équation
contenant une intégrale, une dérivée, une fonction Σ(, une fonction
Pol(, une fonction Rec( ou une instruction multiple.
•Une erreur (Variable ERROR) se produit si la variable solution
n’est pas comprise dans l’expression à résoudre.
31


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