Sharp EL-9450, Руководство по эксплуатации

Страница: 177 / 200

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