CITIZEN SR-281 EN - Manual (Page 8)

File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E8-
tanh x x < 1 x 10
100
sinh –1 x x < 5 x 10
99
cosh –1 x
1
싪
x < 5 x 10 99
tanh –1 x x < 1
log x, ln x
1 x 10 –99
싪 x < 1 x 10 100
10 x
–1 x 10 100 < x < 100
e x
–1 x 10 100 < x 싪 230.2585092
x 0 싪 x < 1 x 10 100
x 2
x < 1 x 10
50
x 3
x < 2.15443469003 x 10 33
1/x x < 1 x 10 100
, x ≠ 0
3 x
x < 1 x 10
100
X !
0 싪 x 싪 69, x is an integer.
R P
2 2 y + x < 1 x 10
100
P R
0 싪 r < 1 x 10
100
DegΚཎ θ
ཎ < 4.5 x 10
10
deg
RadΚཎ θ
ཎ
< 2.5 x 10
8
Ӹ rad
GradΚཎ θ
ཎ < 5 x 10
10
grad
however, for tan x
DegΚཎ
θ
ཎ ≠ 90 (2n+1)
RadΚཎ θ
ཎ
≠
2
π (2n+1)
GradΚཎ θ
ཎ ≠ 100 (2n+1), (n is an integer)
ཎDཎ, M, S
< 1 x 10 100 , 0 싪 M, S
x < 1 x 10
100
x y
x > 0 : –1 x 10 100 < y log x < 100
x = 0 : y > 0
x < 0 : y = n, 1/(2n+1), n is an integer.
but –1 x 10 100 < y log ཎxཎ < 100
x y
y > 0 : x ≠ 0, –1 x 10
100
<
x
1
log y < 100
y = 0 : x > 0
y < 0 : x=2n+1, l/n, n is an integer.(n≠0)