Casio fx-85EX - Page 21

Precision
In general, ±1 at the 10th digit for a single
calculation. Precision for exponential display is
±1 at the least significant digit. Errors are
cumulative in the case of consecutive
calculations.
Function Calculation Input Ranges and Precision
Functions Input Range
sinx
cosx
Degree
0 ≦ |x| < 9 × 10
9
Radian
0 ≦ |x| < 157079632.7
Gradian
0 ≦ |x| < 1 × 10
10
tanx
Degree
Same as sinx, except when |x| = (2n−1) × 90.
Radian
Same as sinx, except when |x| = (2n−1) × π/2.
Gradian
Same as sinx, except when |x| = (2n−1) × 100.
sin
-1
x, cos
-1
x 0 ≦ |x| ≦ 1
tan
-1
x 0 ≦ |x| ≦ 9.999999999 × 10
99
sinhx, coshx 0 ≦ |x| ≦ 230.2585092
sinh
-1
x 0 ≦ |x| ≦ 4.999999999 × 10
99
cosh
-1
x 1 ≦ x ≦ 4.999999999 × 10
99
tanhx 0 ≦ |x| ≦ 9.999999999 × 10
99
tanh
-1
x 0 ≦ |x| ≦ 9.999999999 × 10
-1
logx, lnx 0 < x ≦ 9.999999999 × 10
99
10
x
-9.999999999 × 10
99
≦ x ≦ 99.99999999
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 an integer)
nPr
0 ≦ n < 1 × 10
10
, 0 ≦ r ≦ n (n, r are integers)
1 ≦ {n!/(n−r)!} < 1 × 10
100
nCr
0 ≦ n < 1 × 10
10
, 0 ≦ r ≦ n (n, r are integers)
1 ≦ n!/r! < 1 × 10
100
or 1 ≦ n!/(n−r)! < 1 × 10
100
Pol(x, y)
|x|, |y| ≦ 9.999999999 × 10
99
𝑥
2
+𝑦
2
≦ 9.999999999 × 10
99
20