14679
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L'exemple suivant nous le montre.
53 ÷ 17 = 3.11764705882
affichage
3.117647059
x 10000 = 31176.4705882
affichage
31176.47059
La multiplication par 10000 déplace la virgule ce qui
donne un nombre ayant quatre chiffres avant la virgule.
Pour le reste, rien n'a changé.
- 31176 = 0.4705882
affichage
0.4705882
La soustraction de la partie avant la virgule (31176) libère
la place de quatre chiffres; alors, les chiffres cachés de
la réserve X peuvent apparaître à l'affichage.
C'est également maintenant que l'on peut se rendre
compte que l'affichage était vraiment par excès.
PERDRE DES CHIFFRES
La capacité maximum des réserves numériques est de
12 chiffres. Que se passe-t-il si l'on tente d'y introduire
plus de 12 chiffres?
LIRE TOUS LES CHIFFRES DE LA RESERVE
X
Une astuce de calcul permet de vérifier que la calculatrice
travaille bien avec 12 chiffres, dans les réserves
numériques. Suivez la manipulation ci-dessous, avec
votre calculatrice.
53 ÷ 17 = 3.11764705882
affichage
3.117647059
La machine donne l'affichage par excès du quotient, en
nous cachant les trois derniers chiffres.
29


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