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20061001
α
-2-1
Input Ranges
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
±
1 at the
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
" "
Important!
• sinh and tanh become
singular points when
x
= 0.
In this vicinity, errors
become cumulative and
accuracy deteriorates.
|
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)
" "
nPr
nCr
Result < 1
×
10
100
n
,
r
(
n
and
r
are integers)
0
<
r
<
n
,
n
< 1
×
10
10
" "
20070101