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Casio FX991ES Manual

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E-68
Functions Input Range
tanhx 0Ϲ ȊxȊ Ϲ9.999999999҂10
99
tanh
–1
x 0Ϲ ȊxȊ Ϲ9.999999999҂10
–1
logx/lnx 0x Ϲ9.999999999҂10
99
10
x
–9.999999999҂
10
99
Ϲ x Ϲ 99.99999999
e
x
–9.999999999҂
10
99
Ϲ x Ϲ 230.2585092
'x 0Ϲ x 1 ҂
10
100
x
2
ȊxȊ 1҂
10
50
1/x ȊxȊ 1҂
10
100
;
x G
0
3
'x ȊxȊ 1҂
10
100
x!0Ϲ x Ϲ
69 (
x is an integer)
nPr
0Ϲ n 1҂10
10
, 0Ϲ r Ϲ n (n, r are integers)
1Ϲ {n!/(n–r)!} 1҂10
100
nCr
0Ϲ n 1҂10
10
, 0Ϲ r Ϲ n (n, r are integers)
1Ϲ n!/r! 1҂10
100
or 1Ϲ n!/(n–r)! 1҂10
100
Pol(x, y)
ȊxȊ, ȊyȊ Ϲ9.999999999҂10
99
x
2
+y
2
Ϲ9.999999999҂10
99
Rec(r,
␪
)
0Ϲ r Ϲ9.999999999҂10
99
θ: Same as sinx
ȊaȊ, b, c 1҂10
100
°’ ” 0 Ϲ b, c
ȊxȊ1҂10
100
Decimal ↔ Sexagesimal Conversions
0°0'0"Ϲ ȊxȊ Ϲ9999999°59'59"
x0: –1҂10
100
ylogx100
^(x
y
)
x҃0: y0
x0: y҃n, (m, n are integers)
However: –1҂10
100
ylogȊxȊ100
y0: x G 0, –1҂10
100
1/x logy100
x
'
y
y҃0: x0
y0: x҃2nѿ1, (m G 0; m, n are integers)
However: –1҂10
100
1/x logȊyȊ100
a
b
/c
To tal of integer, numerator, and denominator must be 10 digits or
less (including division marks).
m
2n+1
2n+1
m
•Precision is basically the same as that described under “Calculation Range and
Precision”, above.
•^(x
y
),
x
'y,
3
', x!, nPr, nCr type functions require consecutive internal
calculation, which can cause accumulation of errors that occur with each
calculation.
•Error is cumulative and tends to be large in the vicinity of a function’s singular
point and inflection point.
… 70 …


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Others manual(s) of Casio FX991ES

Casio FX991ES Quick start guide - German - 12 pages

Casio FX991ES User Manual - German - 88 pages

Casio FX991ES User Manual - Dutch - 46 pages

Casio FX991ES User Manual - French - 77 pages


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