78
Calculation rang
es of functions
•
Within the r
anges specifi
ed, this calculator is accur
ate to within ±1
of the least signifi
cant digit of the mantissa.
Ho
w
e
ve
r, a calculation
error increases in contin
uous calculations due to accum
ulation of
each calculation error
. (This is the same f
or fi
nancial
calculations
,
scientifi
c
calculations
[
y
x
,
x
,
e
x
, ln, n!, etc.], where contin
uous
calculations are perf
or
med inter
nally
.)
Additionally
, a calculation error will accum
ulate and become larger
in the vicinity of infl
ection points and singular points of functions
.
In fi
nancial calculations
, a calculation error increases if the
interest is lo
w or the n
umber of pa
yments is high.
Press
s
if y
ou’
d lik
e to cancel the calculation while the
“calculating!”
screen is displa
y
ed.
• Calculation
ranges
±10
–99
to ±9.999999999
×
10
99
and 0.
If the absolute v
alue of an entr
y or a fi
nal or inter
mediate result
of a calculation is less than 10
–99
, the v
alue is considered to be
0 in calculations and in the displa
y.
Function
Calculation rang
e
sin
x
, cos
x
,
tan
x
DEG:
|
x
| < 10
10
(tan
x
: |
x
|
90 (2n – 1))*
RAD:
|
x
| <
—
×
10
10
180
(tan
x
: |
x
|
—
(2n – 1))*
2
10
GRAD:
|
x
| <
—
×
10
10
9
(tan
x
: |
x
|
100 (2n – 1))*
sin
–1
x
, cos
–1
x
|
x
|
1
tan
–1
x
|
x
| < 10
100
In
x
, log
x
10
–99
x
<
10
100
y x
•
y
> 0:
–10
100
<
x
log
y
< 100
•
y
= 0:
0 <
x
< 10
100
•
y
< 0:
x
= n
(0 <
|
x
| < 1:
1
—
x
= 2n – 1,
x
0),*
–10
100
<
x
log |
y
| < 100
Appendix.indd 78
06.7.10 8:42:14 PM