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Appendix
Function
×
2
x
|x| < 1
0 ≤ x < 1
x
0.5 ≤ n ≤ 69.5
-
n!
When a > 0:
×
-
1
10
When a = 0:
a
b
(^)
0 < b < 1
When a < 0:
b is an integer, or
However,
When b > 0:
×
-
1
10
When b = 0:
0 < a < 1
a
b
When b < 0:
a is an odd number, or
However,
nPr
0 ≤ r ≤ n ≤ 69
nCr
→dms
×
|x| < 1
→deg
×
|x| < 1
xy → r
2
2
+
x
y
xy → θ
y
|
| < 1
x
rθ → x
×
|r| < 1
rθ → y
170
Calculation range
50
10
×
10
100
100
< b log a < 100
×
10
100
1
is an odd number (b ≠ 0)
b
×
-
1
10
100
< b log |a| < 100
1
log b < 100, a ≠ 0
100
<
a
×
10
100
1
a
1
×
-
1
10
100
<
log |b| < 100
a
10
100
×
10
100
, |y| < 1
10
×
< 1
10
100
×
10
100
100
10
is an integer (a ≠ 0)
100
Notes
n is an integer or
+
integer
0.5
a
b
= 10
b·log a
1
log b
= 10
a
a
b
n and r are positive
integers
r =
2
2
+
x
y
y
θ = tan
-
1
x
x = r cosθ
y = r sinθ
The range of θ is
the same as x of
sin x and cos x
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