Casio CFX-9850GB PLUS, User Manual

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20070201
α
-2-2
Input Ranges
Function
Input range for real
number solutions
Internal
digits
Precision Notes
Pol (
x , y
)
x
2
+
y
2
< 1
×
10
100
15 digits
As a rule,
precision is
±
1 at the
10th digit.*
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
° ’ ”
←⎯
° ’ ”
|
a
|,
b
,
c
< 1
×
10
100
0 <
b
,
c
" "
|
x
| < 1
×
10
100
Sexagesimal display:
|
x
| < 1
×
10
7
^(
x
y
)
x
> 0:
–1
×
10
100
<
y
log
x
< 100
x
= 0 :
y
> 0
x
< 0 :
y
=
n
,
m
––––
2 n +1
(
m
,
n
are integers)
However;
–1
×
10
100
<
y
log |
x
| < 100
" "
• Complex numbers can be
used as arguments.
x '
y
y
> 0 :
x
≠
0
–1
×
10
100
<
1
x
log
y
< 100
y
= 0 :
x
> 0
y
< 0 :
x
= 2
n
+1,
2 n +1
––––
m
(
m
≠
0;
m , n
are integers)
However;
–1
×
10
100
<
1
x
log |
y
| < 100
" "
• Complex numbers can be
used as arguments.
a b / c
Total of integer, numerator
and denominator must be
within 10 digits (includes
division marks).
" "
* For a single calculation, calculation error is
±
1 at the 10th digit. (In the case of exponential
display, calculation error is
±
1 at the last signifi cant digit.) Errors are cumulative in the case
of consecutive calculations, which can also cause them to become large. (This is also true of
internal consecutive calculations that are performed in the case of ^(
x
y
),
x '
y
,
x
!
,
3
'
x
,
n
P
r
,
n
C
r
,
etc.)
In the vicinity of a function’s singular point and point of infl ection, errors are cumulative and may
become large.