Casio fx-CG20 nCr, 2. Input Ranges, nPr, Notes, digits, Function, Internal, Precision, number solutions, Input range for real

2. Input Ranges

Function	Input range for real				Internal	Precision	Notes
	number solutions				digits
sinx	(DEG) x < 9 ⋅ (109)°					As a rule,	However, for tanx :
						precision is	x ≠ 90(2n+1): DEG
cosx	(RAD) x < 5 ⋅ 107πrad				15 digits
						±1 at the	x ≠ π/2(2n+1): RAD
tanx	(GRA) x < 1 ⋅ 1010grad
						10th digit.*	x ≠ 100(2n+1): GRA
sin–1x	x < 1
cos–1x
					"	"
tan–1x	x < 1 ⋅ 10100
sinhx	x < 230.9516564
coshx					"	"
tanhx	x < 1 ⋅10100
sinh–1x	x < 1 ⋅ 10100
cosh–1x	1 < x < 1 ⋅ 10100				"	"
tanh–1x	x < 1
logx	1 ⋅ 10–99< x < 1 ⋅ 10100				"	"	• Complex numbers can be
Inx							used as arguments.
10x	–1 ⋅ 10100 < x < 100
ex	–1 ⋅ 10100				"	"	• Complex numbers can be
			< x < 230.2585092				used as arguments.
'	0 < x < 1 ⋅ 10100
x					"	"	• Complex numbers can be
x2	x < 1 ⋅ 1050
							used as arguments.
1/x	x < 1 ⋅ 10100, x ≠ 0				"	"	• Complex numbers can be
3 x
	x < 1	⋅	10	100
							used as arguments.
'
x!	0 < x < 69				"	"
	(x is an integer)
nPr	Result < 1 ⋅ 10100
	n, r (n and r are integers)				"	"
nCr
	0 < r < n, n < 1 ⋅ 1010
Pol (x, y)	x2 + y2 < 1 × 10100				"	"
	r < 1 ⋅ 10100						However, for tanθ :
Rec	(DEG) θ < 9 ⋅ (109)°				"	"	θ ≠ 90(2n+1): DEG
(r ,θ)	(RAD) θ < 5 ⋅ 107π rad						θ ≠ π/2(2n+1): RAD
	(GRA) θ < 1 ⋅ 1010grad						θ ≠ 100(2n+1): GRA

α-14