Sharp EL-5230, EL-5250 operation manual x, y → r, θ

Appendix

Function					Dynamic range
ex	–10100< x ≤ 230.2585092
10x	–10100< x < 100
sinh x, cosh x,	x ≤ 230.2585092
tanh x
sinh–1x	x < 1050
cosh–1x	1 ≤ x < 1050
tanh–1x	x < 1
x2	x < 1050
x3	x < 2.15443469 ⋅ 1033
__
√x	0 ≤ x < 10100
x–1	x < 10100 (x ≠ 0)
n!	0 ≤ n ≤ 69*
nPr	0 ≤ r ≤ n ≤ 9999999999*
	n!
	—— < 10100
	(n-r)!
	0 ≤ r ≤ n ≤ 9999999999*
nCr	0 ≤ r ≤ 69
	n!
	—— < 10100
	(n-r)!
↔DEG, D°M’S	0°0’0.00001” ≤ x < 10000°
x, y → r, θ
		x2 + y2 < 10100
	0 ≤ r < 10100
	DEG:		θ < 1010
r, θ→ x, y	RAD:		θ		π	⋅ 1010
					< —–
					180
	GRAD : θ				10	10
					< — ⋅ 10
					9
DRG	DEG→RAD, GRAD→DEG: x < 10100
						π
	RAD→GRAD: x < — ⋅ 1098
						2
(A+Bi)+(C+Di)	A + C < 10100, B + D < 10100
(A+Bi)–(C+Di)	A – C < 10100, B – D < 10100
(A+Bi)⋅(C+Di)	(AC – BD) < 10100
	(AD + BC) < 10100
	AC + BD				100
(A+Bi)⎟(C+Di)	C2 + D2			< 10
	BC – AD				100
	C2 + D2			< 10
	C2 + D2 =/ 0

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