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e
x
-9,999999999 × 10
99
x 230,2585092
𝑥
0 x < 1 × 10
100
x
2
|x| < 1 × 10
50
x
-1
|x| < 1 × 10
100
; x ≠ 0
𝑥
3
|x| < 1 × 10
100
x!0 x 69 (x is een geheel getal)
nPr
0 n < 1 × 10
10
, 0 r n (n, r zijn gehele getallen)
1 {n!/(nr)!} < 1 × 10
100
nCr
0 n < 1 × 10
10
, 0 r n (n, r zijn gehele getallen)
1 n!/r! < 1 × 10
100
of 1 n!/(nr)! < 1 × 10
100
Pol(x, y)
|x|, |y| 9,999999999 × 10
99
𝑥
2
+𝑦
2
9,999999999 × 10
99
Rec(r, θ)
0 r 9,999999999 × 10
99
θ: Idem als sinx
°’ ”
|a|, b, c < 1 × 10
100
; 0 b, c
De secondenwaarde van de display heeft een fout van
±1 op de tweede decimale plaats.
°’ ”
|x| < 1 × 10
100
Decimale Sexagesimale conversies
0°0’0” |x| 9999999°59’59”
x
y
x > 0: -1 × 10
100
< ylogx < 100
x = 0: y > 0
x < 0: y = n,
𝑚
2𝑛 + 1
(m, n zijn gehele getallen)
Maar: -1 × 10
100
< ylog |x| < 100
𝑦
𝑥
y > 0: x ≠ 0, -1 × 10
100
< 1/x logy < 100
y = 0: x > 0
y < 0: x = 2n+1,
2𝑛 + 1
𝑚
(m ≠ 0; m, n zijn gehele getallen)
Maar: -1 × 10
100
< 1/x log |y| < 100
a
b
/
c
Het totaal van gehele getallen, tellers en noemers moet
10 cijfers of kleiner zijn (inclusief scheidingssymbool).
RanInt#(a, b) a < b; |a|, |b| < 1 × 10
10
; ba < 1 × 10
10
Nauwkeurigheid is in principe dezelfde als beschreven in
“Berekeningsbereik en -nauwkeurigheid”, hierboven.
Functies van het type x
y
, 𝑦
𝑥
,
3
, x!, nPr, nCr vereisen opeenvolgende
interne berekeningen, wat een accumulatie van fouten kan veroorzaken
die bij iedere berekening optreden.
Fout is cumulatief en heeft de neiging groot te worden bij het singulaire
punt of het buigpunt van een functie.
Het bereik voor berekeningsresultaten dat kan worden weergegeven in
π-vorm wanneer MathI/MathO is geselecteerd voor Input/Output in het
setupmenu is |x| < 10
6
. Merk echter op dat de interne berekeningsfout
het onmogelijk kan maken om sommige berekeningen in de π-vorm weer
te geven. Het kan ook berekeningsresultaten die in decimale vorm
zouden moeten, weergeven in π-vorm.
Specicaties
Stroomvereisten:
fx-570EX: AAA-batterij R03 (UM-4) × 1
fx-991EX: Ingebouwde zonnecel; knoopcelbatterij LR44 × 1
Geschatte levensduur van de batterij:
44
45


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