Casio fx-CG20 Manual De Usuario
CASIO
α
-14
2. Input Ranges
Function
Input range for real
number solutions
Internal
digits
Precision
Notes
sin
x
cos
x
tan
x
(DEG) |
x
| < 9
× (10
9
)°
(RAD) |
x
| < 5
× 10
7
π rad
(GRA) |
x
| < 1
× 10
10
grad
15 digits
As a rule,
precision is
precision is
± 1 at the
10th digit.*
10th digit.*
However, for tan
x
:
|
x
|
≠ 90(2
n
+1): DEG
|
x
|
≠ π /2(2
n
+1): RAD
|
x
|
≠ 100(2
n
+1): GRA
sin
–1
x
cos
–1
x
tan
–1
x
|
x
| < 1
"
"
|
x
| < 1
× 10
100
sinh
x
cosh
x
tanh
x
|
x
| < 230.9516564
"
"
|
x
| < 1
× 10
100
sinh
–1
x
cosh
–1
x
tanh
–1
x
|
x
| < 1
× 10
100
"
"
1 <
x
< 1
× 10
100
|
x
| < 1
log
x
In
x
1
× 10
–99
<
x
< 1
× 10
100
"
"
• Complex numbers can be
used as arguments.
10
x
e
x
–1
× 10
100
<
x
< 100
"
"
• Complex numbers can be
used as arguments.
–1
× 10
100
<
x
< 230.2585092
'
x
x
2
0 <
x
< 1
× 10
100
"
"
• Complex numbers can be
used as arguments.
|
x
| < 1
× 10
50
1/
x
3
'
x
|
x
| < 1
× 10
100
,
x
≠ 0
"
"
• Complex numbers can be
used as arguments.
|
x
| < 1
× 10
100
x
!
0 <
x
< 69
(
x
is an integer)
"
"
n
P
r
n
C
r
Result < 1
× 10
100
n
,
r
(
n
and
r
are integers)
0 <
r
<
n
,
n
< 1
× 10
10
"
"
Pol (
x
,
y
)
x
2
+
y
2
< 1 × 10
100
"
"
Rec
(
r
,
θ
)
|
r
| < 1
× 10
100
(DEG) |
θ
| < 9
× (10
9
)°
(RAD) |
θ
| < 5
× 10
7
π rad
(GRA) |
θ
| < 1
× 10
10
grad
"
"
However, for tan
θ
:
|
θ
|
≠ 90(2
n
+1): DEG
|
θ
|
≠ π /2(2
n
+1): RAD
|
θ
|
≠ 100(2
n
+1): GRA